I don't use ADSL but the VPI setting should be zero and the VCI setting 38.
Depending on what settings you need to enter:
Encapsulation Mode - PPP over ATM (PPPoA - RFC2364) VC-MUX
Authentication - CHAP
You shouldn't need to set up IP, Subnet Mask and Default Gateway addresses; the router will get these automatically from the ISP and, in turn, the PC will get its addresses automatically from the router.