compatiblity

Hello all, after too much google and stuff, i came to a conclusion that there is no way we can install USB drivers for LG LSP350R in windows VIsta 64, while in 32bit it works quite as easy as XP. Now i found out that some other products from reliance are going Vista 64 supported, but not...

I've a brand new zion 256MB DDR 400 and another 256MB DDR 333 (simmtronics) can i use these both in my mobos two slots.is there any compatiblity problem:???:.