Why don't you just get your driver detective friend (who you say has these drivers) to get them for you? If he/she/they can get them, I don't understand why you even posted here.
I suspect the reason why you don't find drivers posted on driverguide.com is because averatec doesn't seem to be in existence (at least not in North America where this site is located). When you buy sub-standard products, you get sub-standard support. Buy Toshibia, Dell, Gateway, Sony, Acer, etc. and you won't have this problem.
This site has driver disks/restore disks for this machine for a nominal fee: http://www.user-guides.co.uk/cddownl...sk-116373.html
And this site may be able to help you: http://www.trigem.com/us/support/drivers.asp