Post #5 should help you out
Most of the time when you install this app it makes itself the default app for contacts. When it doesnt I try the original iContact app and it works. I switch rom's quite often and find that either this burnt edition or the original iContacts will install correctly as the default app. You can also dl the original iContacts
here. So before you go editing your registry try installing the other app to see if that works for you as the default app.
I hope this helps