I bought a lemon router (USR8054) about 4 years or so ago, and just a week ago, I google'd for an unofficial firmware to make the router more stable, and this thread intrigued me:
http://www.dslreports.com/forum/remark,10995316
However, I found that it was posted in 2004, and the thread had closed since 2005. I wanted to do the mod yesterday, but the link to v1.15 was dead, and google was no to avail. However, the good news is that I found all the necessary files somehow, and I decided today to put together a "kit" that will help other users like me successfully convert their lemon into something at least worth using without spending $50+ on a new Linksys router.
I've attached my kit with detailed instructions step-by-step in the "Readme.txt" file.
I hope this helps you guys. Enjoy.
P.S.: I couldn't find the right section to post this in, so I decided the best would be the General section.
#EDIT: I forgot to mention that I did successfully follow the exact procedure I mentioned in my kit, except I went from v1.15->v1.19->v1.23, and not directly from v1.15->v1.23. It should work either way, though. I'm liking this firmware already better than USR's.