mhhh . . .but the router has PPPoE inbuilt?
If not, download the PPPoE driver for the XSurf here:
http://siliconsonic.de/t/bin/dsl-rel2.lhaThis archive (it has a good installer) will create a new interface called
"xsurfadsl" (and install the special appp.device and the xsurfadsl.device too)
Usually when a router is present, the ADSL modem become redoundant.
But i'm not 100% sure . . .sorry.
Bye