I'm a bit rusty on those versions of the applications, but I seem to recall they were both written for both Classic and OS X. I may be wrong on the detail, but I
think PS7 had an OSX installable module such that it would install under either OS9/Classic or OSX, but Illustrator 10 required OS9/Classic and then an OS X updater. I apologize that my memory may not be entirely correct however - my last install of either was perhaps 3 years ago!
I'm also not sure that even if it did install, it would work correctly, since a number of Adobe's pre-native MacOS applications had some stability issues running under Rosetta on Intel hardware.
You might want to have a look at the support resources on the adobe site (
http://www.adobe.com/support/?ogn=ENUS-gn_suppsupport) to see if they offer some more help and better guidance than I! There are support communities there, in addition to knowledgebase and updates.