I have upgraded my qt creator and it is putting a dependency on Qt 4.7 in the control file. It should work with 4.6, but the packaging won't let it now. I am not going to repackage for backwards compatibility (I am not even sure how to make it downgrade the QT dependency, let alone how to do it so it will work for 1.3 users with no problems).

You can download the .deb, crack it open, and install the files manually. An easier method would be to upgrade to 1.3. It really does fix a bunch of bugs--one in particular that was plauging the login page on this app.