I am unable to get the FogBugz integration service to post to my hosted fogbugz account.

Following the directions for the service:

Go to admin / source control

Click create new repository

Select other (custom)

Click next

FogBugz gives me the following URL:
https://astonishdesigns.fogbugz.com/cvsSubmit.asp?ixBug=bugID&sFile=file&sPrev=x&sNew=y&ixRepository=45

The directions are a bit ambiguous at this point. Do I remove ixRespository from the submit URL and put it in the repository ID field? Do I leave the URL as is, and just paste the ID number (45) into the repository ID field? Do I leave the URL as is and paste the entire parameter (ixRepository=45) into the ID field?

I have tried all these variations, but in no cases are commits being picked up by FogBugz.