Just got a new computer, but some problems

[handsomeness]

my spec:

window 98se

amd64 3000+

MSI K8N Neo Platinum nVidia nForce 3 250Gb

1) how can i install the driver for PCI systems management BUs and PCI Universal Serial BUs?

2) is there a firewall in this motherobard? cause when i downloading stuff with bittorrent, the light is yellow. how can i turn the firewall off?

thanks in advance...