Studio Manager 7 is Tiger-compatible. The basis of that compatibility is that FileMaker 7 is and has been announced by FileMaker Inc. as being Tiger-compatible. As far as I can tell FileMaker 6 is also Tiger-compatible and thus previous versions of Studio Manager are also very, very likely to be Tiger-compatible. I've been opening older versions of Studio Manager in FileMaker 6 without any problems whatsoever.
On the other hand, Stuffit Expander has been giving me fits. I've been moving more and more towards using Zip as my compression technology for sharing files because it is cross-platform and has proven compatible under more circumstances than Stuffit.