hd4870 & ALC 888 not working

[r5r4y]

Hello
I've successfully installed Lawless PPC 10.5.4 on my PC...

I've a few problems... my sound isn't working and also i don't have any 3D acceleration and resolution is only 1024x768, how can i install drivers for my graphic card? I've GigaByte HD4870 512MB

also i don't sound at all, although I've chosen the drivers during the install it's seems like it didn't install them cause in System Profiler it's says: No Built-In Audio

my Motherboard is MSI K9A2 CF AM2+ here is a link to the manufacturer site if it's any help: http://www.msi.com/index.php?func=proddesc&maincat_no=1&cat2_no=171&prod_no=1333

Besides that everything seem to work smoothly, the fonts kinda messed up but that probably because i don't have 3D?

I'm a complete newbie on Mac, please talk slowly so i could understand you. :D

[r5r4y]

Solved the HD4870 3D with this guide: http://www.insanelymac.com/forum/index.php?showtopic=155477

fonts looks much better, but still I've no Sound from my ALC888.
any help?

[r5r4y]

Everything Solved!
I've installed the sound with this: http://www.insanelymac.com/forum/index.php?showtopic=36520

Just two more questions...
Should i upgrade to a newer version of mac? right now i'm using 10.5.4 and everything seem to work great.
How Can i key combinations? In windows I've used to change my lang with the Shift and Alt Key, Here I'm Pressing Alt+Space, Is there anyway to change this?