Wow! That is an exact answer! Thank you!
Meanwhile I discovered, that my Printer doesn't work anymore with jpeg and pdf opened in Apple's "preview", after installing "Creative Suite2". I then added the same printer as new and deleted the old (same) printer from the list, that solved it for one print.
Now I was wondering, if it really has something to do with CS2 and gave it a try to uninstall parts. I then first uninstalled "Adobe Cue2" (uninstaller did not remove everything, so I had to manually delete the .plist and the actual Cue2 folder itself and something other). Then I repaired permissions and printing worked for printing pdf documents launched in Apple's "Preview". Jpegs are still not printed the way I choose settings before printing. I will have to do further testing, if it is really my printer not liking CS2 or something else.
I tested it under 10.4 (I know Adobe says 10.2.8-10.3.8 only). I thought it would work, since I had a single copy of PhotoshopCS2 (which had another icon colour than that in Creative Suite). I copied this from my old iMac, where I had it running under 10.2.8. It first worked nice under 10.4 (with the same license key I had on my iMac G3) on my ibook G4, but suddenly it did not work anymore. Since I did not use it a lot, I did not know, since when it was not working anymore, but I know it worked some years and than some years not until now.