Er, dunno just am
Seriously though, I really don't know. Inside my Quark preferences folder (User Library) I have a folder for 6 and 7.
If it's 7.0.1 it might be different, because it wasn't an upgrade, it was a whole new install and Quark really messed it up. It wasn't made clear at all.
How did you upgrade? the 7.0.1 upgrade wanted a valid reg number but it wanted a 6.5 number not a 7.0 number. That may be your problem.
Not using any flavour of 7 for production at the moment, we're holding for mission critical extentions, I can't even get an effing beta!
Sorry I can't be more help.
If I'm wrong I'm sure Almaink will put me right