Mapping - Home URL - use of wildcard characters?

Hi, is it possible to use wildcard characters in the Mapping Home URL field?

When we load up our frontpage we append the username and domain to the end of the url.

eg /ourhome.nsf/Fhomeform?OpenForm&user=ted&domain=live

the fact that the URL isn’t constant is stopping us from using the mapping facility - is there a way around this ?

thanks

paul