root@Gargoyle:~$ opkg list-installed
badblocks - 1.41.11-1
base-files - 43.34-r31348
blkid - 1.41.11-1
block-mount - 0.1.0-2.2cj
bridge - 1.4-1
busybox - 1.15.3-3.4
chat - 2.4.5-1cj
comgt - 0.32-9cj
crda - 1.1.1-1
ddns-gargoyle - 1.5.4-1
disktype - 9-1
dnsmasq - 2.55-6.1
dosfsck - 3.0.9-1
dropbear - 0.53.1-6
e2fsprogs - 1.41.11-1
ebtables - 2.0.9-1-1
ewget - 1.5.4-1
fdisk - 2.13.0.1-4
firewall - 2-34.9
gargoyle - 1.5.4-6
gargoyle-firewall-util - 1.5.4-1
haserl - 0.9.26-1
hostapd-mini - 20111103-3
hotplug2 - 1.0-beta-3
httpd-gargoyle - 1.5.4-1
ip - 2.6.29-1-2
ipset - 4.1-1
iptables - 1.4.6-3.1cj
iptables-mod-bandwidth - 1.4.6-3.1cj
iptables-mod-conntrack - 1.4.6-3.1cj
iptables-mod-conntrack-extra - 1.4.6-3.1cj
iptables-mod-filter - 1.4.6-3.1cj
iptables-mod-imq - 1.4.6-3.1cj
iptables-mod-ipopt - 1.4.6-3.1cj
iptables-mod-iprange - 1.4.6-3.1cj
iptables-mod-ipset - 1.4.6-3.1cj
iptables-mod-nat - 1.4.6-3.1cj
iptables-mod-nat-extra - 1.4.6-3.1cj
iptables-mod-timerange - 1.4.6-3.1cj
iptables-mod-webmon - 1.4.6-3.1cj
iptables-mod-weburl - 1.4.6-3.1cj
iw - 0.9.22-2
kernel - 2.6.32.27-1cj
kmod-ath - 2.6.32.27+2011-12-01-1cj
kmod-ath9k - 2.6.32.27+2011-12-01-1cj
kmod-ath9k-common - 2.6.32.27+2011-12-01-1cj
kmod-button-hotplug - 2.6.32.27-1
kmod-cfg80211 - 2.6.32.27+2011-12-01-1cj
kmod-crc-ccitt - 2.6.32.27-1cj
kmod-crc16 - 2.6.32.27-1cj
kmod-crypto-aes - 2.6.32.27-1cj
kmod-crypto-arc4 - 2.6.32.27-1cj
kmod-crypto-core - 2.6.32.27-1cj
kmod-ebtables - 2.6.32.27-1cj
kmod-fs-exportfs - 2.6.32.27-1cj
kmod-fs-ext2 - 2.6.32.27-1cj
kmod-fs-ext3 - 2.6.32.27-1cj
kmod-fs-ext4 - 2.6.32.27-1cj
kmod-fs-mbcache - 2.6.32.27-1cj
kmod-fs-msdos - 2.6.32.27-1cj
kmod-fs-nfs - 2.6.32.27-1cj
kmod-fs-nfs-common - 2.6.32.27-1cj
kmod-fs-nfsd - 2.6.32.27-1cj
kmod-fs-vfat - 2.6.32.27-1cj
kmod-fuse - 2.6.32.27-1cj
kmod-input-core - 2.6.32.27-1cj
kmod-input-gpio-buttons - 2.6.32.27-1cj
kmod-input-polldev - 2.6.32.27-1cj
kmod-ipt-bandwidth - 2.6.32.27-1cj
kmod-ipt-conntrack - 2.6.32.27-1cj
kmod-ipt-conntrack-extra - 2.6.32.27-1cj
kmod-ipt-core - 2.6.32.27-1cj
kmod-ipt-filter - 2.6.32.27-1cj
kmod-ipt-imq - 2.6.32.27-1cj
kmod-ipt-ipopt - 2.6.32.27-1cj
kmod-ipt-iprange - 2.6.32.27-1cj
kmod-ipt-ipset - 2.6.32.27+4.1-1
kmod-ipt-nat - 2.6.32.27-1cj
kmod-ipt-nat-extra - 2.6.32.27-1cj
kmod-ipt-nathelper - 2.6.32.27-1cj
kmod-ipt-timerange - 2.6.32.27-1cj
kmod-ipt-webmon - 2.6.32.27-1cj
kmod-ipt-weburl - 2.6.32.27-1cj
kmod-leds-gpio - 2.6.32.27-1cj
kmod-ledtrig-usbdev - 2.6.32.27-1cj
kmod-mac80211 - 2.6.32.27+2011-12-01-1cj
kmod-nls-base - 2.6.32.27-1cj
kmod-nls-cp1250 - 2.6.32.27-1cj
kmod-nls-cp1251 - 2.6.32.27-1cj
kmod-nls-cp437 - 2.6.32.27-1cj
kmod-nls-cp775 - 2.6.32.27-1cj
kmod-nls-cp850 - 2.6.32.27-1cj
kmod-nls-cp852 - 2.6.32.27-1cj
kmod-nls-cp866 - 2.6.32.27-1cj
kmod-nls-iso8859-1 - 2.6.32.27-1cj
kmod-nls-iso8859-13 - 2.6.32.27-1cj
kmod-nls-iso8859-15 - 2.6.32.27-1cj
kmod-nls-iso8859-2 - 2.6.32.27-1cj
kmod-nls-koi8r - 2.6.32.27-1cj
kmod-nls-utf8 - 2.6.32.27-1cj
kmod-ppp - 2.6.32.27-1cj
kmod-pppoe - 2.6.32.27-1cj
kmod-sched - 2.6.32.27-1cj
kmod-scsi-core - 2.6.32.27-1cj
kmod-textsearch - 2.6.32.27-1cj
kmod-tun - 2.6.32.27-1cj
kmod-usb-acm - 2.6.32.27-1cj
kmod-usb-core - 2.6.32.27-1cj
kmod-usb-printer - 2.6.32.27-1cj
kmod-usb-serial - 2.6.32.27-1cj
kmod-usb-serial-option - 2.6.32.27-1cj
kmod-usb-serial-sierrawireless - 2.6.32.27-1cj
kmod-usb-storage - 2.6.32.27-1cj
kmod-usb-storage-extras - 2.6.32.27-1cj
kmod-usb2 - 2.6.32.27-1cj
libblkid - 1.41.11-1
libc - 0.9.30.1-43.34
libcurl - 7.23.1-1
libcyassl - 1.6.5-3
libericstools - 1.5.4-1
libevent - 1.4.13-2
libevent2 - 2.0.16-1
libext2fs - 1.41.11-1
libgcc - 4.3.3+cs-43.34
libip4tc - 1.4.6-3.1cj
libiptbwctl - 1.5.4-1
libnl-tiny - 0.1-2.1
libopenssl - 0.9.8x-1
libpthread - 0.9.30.1-43.34
librt - 0.9.30.1-43.34
libuci - 12012009.7-4
libusb - 0.1.12-2
libuuid - 1.41.11-1
libwrap - 7.6-1
libxtables - 1.4.6-3.1cj
miniupnpd - 1.5.20110309-1
mtd - 13
nfs-kernel-server - 1.1.6-1
nfs-kernel-server-utils - 1.1.6-1
nfs-utils - 1.1.6-1
ntfs-3g - 2010.8.8-1-fuseint
ntpclient - 2007_365_1-1
opkg - 576-2
p910nd - 0.95-1
plugin-gargoyle-dark-one-theme - 1.5.4-1
plugin-gargoyle-ftp - 20120326-3
plugin-gargoyle-initd - 20120326-3
plugin-gargoyle-plugins - 1.5.4-1
plugin-gargoyle-usb-storage - 1.5.4-1
portmap - 6.0-2
ppp - 2.4.5-1cj
ppp-mod-pppoe - 2.4.5-1cj
qos-gargoyle - 1.5.4-1
samba3 - 3.0.24-7
sha1sum - 1.5.4-1
swap-utils - 2.13.0.1-4
swconfig - 9
tc - 2.6.29-1-2
transmission-daemon - 2.52-1cj
uci - 12012009.7-4
udevtrigger - 106-1
usb-modeswitch - 1.2.3-2cj
usb-modeswitch-data - 20120120-1cj
uuidgen - 1.41.11-1
vsftpd - 2.3.4-gargoyle-3
webmon-gargoyle - 1.5.4-1
wireless-tools - 29-4
wol - 0.7.1-2
wpa-supplicant-mini - 20111103-3
wpad-mini - 20111103-3
zlib - 1.2.3-5

root@Gargoyle:~$ opkg install bwmon-gargoyle - 1.5.4-1
Installing bwmon-gargoyle (1.5.4-1) to root...
Unknown package '-'.
Unknown package '1.5.4-1'.
Collected errors:
 * opkg_download_pkg: Package bwmon-gargoyle is not available from any configured src.
 * opkg_install_pkg: Failed to download bwmon-gargoyle. Perhaps you need to run 'opkg update'?
 * opkg_install_cmd: Cannot install package bwmon-gargoyle.
 * opkg_install_cmd: Cannot install package -.
 * opkg_install_cmd: Cannot install package 1.5.4-1.