InDesign CS2 can convert legacy InDesign files, PageMaker files, and even Quark files. The following versions will translate:
Quark 3.3 or 4.1x documents or templates
Quark Passport 4.1x
PageMaker 6.0 and later documents and templates
InDesign legacy files, all versions
Note
Later versions of Quark need to be saved down to 4.1x before you can convert documents.
InDesign can recover most corrupt documents that PageMaker can't open.