I’ve found that you can install 32bit goodies on a 64 bit system. My journey of discovery happened when trying to get tweetdeck to work right in 64bit Ubuntu….
getlibs is a program you can install to get 32bit drivers for installing 32bit software on a 64bit machine.
native 64 bit flash works better than 32 bit flash. Adding “native” to my google searches helped me out with installing google gears, flash, and Java.
Finally, dpkg -i—force-all program.deb will FORCE the install of 32 bit software. combined with getlibs, you can make your programs work. Use with caution!! (RTFM)
After saying all that. I will say I haven’t gotten imeem.com to work with 64 bit firefox/Flash. However, everything else works great. (fingers crossed for Fire Fox 3.5)
hope this helps
benefits of 64bit