WSS 3 and SPSolGen (exception: can't find the default web site)

I try to use SPSolGen and I get an exception with details saying, it can't find the default web site. My WSS site is configured on 8080 port and don't use the default IIS web site.

How I configure SPSolGen tools to work with WSS site configured on 8080 port

Regards,

Giuseppe