If you are referring to the ipkg packages then yes they are and are called up at http://ipkg.nslu2-linux.org/feeds/op.../cross/stable/.
The firmware is available at http://wl700ge.hezik.nl/.
OpenWRT Backfire(2.4) 10.03.1 can also be installed as well, with all the opkg packages. http://downloads.openwrt.org/backfire/10.03.1/brcm-2.4/ initial flash file needs to be made but can be done.