The only way for me to connect to the internet is to boot snow leopard on 32 bit mode. Is there a way to solve this problem?

I tried many things to boot with 64 bit but without success... I read meany posts, and what I concluded is that only official mac pro can boot in 64 bit. BUT, that doesn't mean your applications can't work in 64 bit mode!! if you go to system profiler > software > extensions and look at the right side you should see which extensions support 64 bit. a lot of them do (in my case in snow leo). but my ralink rt2870 is idd running in 32 bit. i think the guys from ralink should adapt something, not snow leo...