Im using 6.0.5 on this Mac, with 10.3.9. Its my communication machine, and its doing all I need(well not iTunes evidently).
The other Mac is 10.4.11 with iTunes v. 8.0.2. But the reason I dont use that one, is that my big speakers are on this machine and I run the music in the background while the other machine is doing PS Terragen and the more 'hungry' programs.
Though I have been able to move songs between them while networked. But that sometimes is very very tricky.
I do remember that the newer iTunes versions had a glitch where it was far more difficult to just drag and drop songs between Macs, thats one reason Ive stayed with v. 6.
I wish they would just leave stuff alone and not make us upgrade constantly, if it aint broke?
But, alas, it is broke,,,,,,
Jane