As well, I have uploaded a backport of Qt 4.4.3 (*), for AMD64, i386 and PowerPC. If you are using KDE 4.1.x, you definitively want to use this Qt 4 version with a bunch of bugfixes.
A lot of people mailed me in the last week asking about problems with the mirror, this was caused by kde4.debian.net being actually 2 mirrors in round robin and the secondary (and faster) one having some problems syncing.
(*) Yes, I know Qt 4.4.2 and 4.4.3 are equal just with copyright changes, but it was easier backport latest version from unstable, right? :)