wine users - Nov 2010 - 2 problems with wine...Full Tilt and Guitar Pro/Power Tab

Alright here we go.

When I start up my computer and open Full Tilt, it works fine for about 15
minutes. After about 15 minutes, the sound stops working, and then a little
after that, the program crashes all together. If I try to open it up after I
force quit it, the fonts all get messed up, the sound still doesn't work,
and everything is just a mess. What can I do to get Full Tilt to stop crashing?
Another slight problem I have is that there's a certain freeroll I try to
play when I can. In order to register for it, you have to click a link in the
lobby, which opens up a Firefox window so you can register for it. Nothing
happens when I click the link though. Is there anyway I can get the window to
open when I click the link? It's annoying having to register on my Windows
laptop.

As for Guitar Pro/Power Tab...I got them working fine except the sound
doesn't work at all. My friend had me install various MIDI programs like
Timidity, but I still can't get the sound to play for these programs. Any
help on this?

I'm pretty new to Linux, so a step by step explanation would be much
appreciated =P