Does Fedora 5 is well supported now ? i ask this because i need Mysql 5 and PHP 5.
It's pretty well supported. And, as with all platforms, if you run into problems we'll help you get them fixed (as best we can).
I haven't actually tested on x86_64 yet, but it seems to work pretty will on i386. I'll be testing x86_64 today, I hope. (I only have remote access to an x86_64 machine at the moment, so it takes longer to do everything for that arch--that's a temporary thing, of course, as I'll be getting an x86_64 box on my desk sometime soon).
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