Hmmmm, I cant really say why you would still be getting that error, the host must be seriously looking down the server if you cannot start a path with a forward slash, that really makes it almost impossible to link to other page.
This are the two common ways of linking to another file:
This new error:
Server object error 'ASP 0177 : 800401f3'
/body/WA_Universal_Email/CDONTS_NewMail_VB.asp, line 92
means that the CDONTS mail object is not installed on the server.
Most common is the CDOSYS mail object, but you will need to check with the host to see which ones they support.
Yes, in the "Go to page" filed, you specify the page that should load after the email has been sent.