Well,
I bought the pack for Whispered World and Jack Keane, and both seem to work fine (now).
KQ also runs without problems so far, but I played these games 10-15 years ago, so I don't care that much.
Penny Arcade only shows the usual black screen with red dots, and it would be fine to hear some update about this (is the reason already known? is a patch in work?). All the suggestions so far didn't help.
Puzzle Agent: usual no-text menus, and no, I won't screw up my local settings for just one game, fix it! (and as it is a TTG game, it shouldn't be that hard...)
Still, this bundle is a great deal, and I'm confident that TTG will fix all problems and learn from this for the next deal...