But here are the binaries (for iPhone 3G, and for iPhone 2G), graciously hosted by PC World!
Please read the how-to that I wrote for PC World to on installing it. The steps are basically the same as before, except you can put the firmware in a directory on the iPhone OS data partition. This means that you don't have to modify the ext2 partition as before.
One thing I didn't mention is that you could perform the installation on OS X without a Linux VM if you recompile
oibc. Otherwise, the directions are the same.