Apps Not Displaying
On further investigation, it appears that AppleScript applications with bundles are not displaying in the iTunes 9.0.2 Script menu. This means that any app written under 10.6 will not appear since app bundles are the default application build style. Apps written without bundles pre-10.6 will display. Regular scripts, with or without bundles, seem fine.
UPDATE: ScriptPal is a good workaround.