need some help with norton safe web

i'm trying to report a false positive detection of a domain on norton safe web and i followed the info on this page http://safeweb.norton.com/help/site_owners. after i signed up for an account i wasn't able to find the "site dispute" tab options.

 

what is the best way to resolve a false positive issue? obviously this is an urgent matter.

 

thanks in advance for your help!