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Usually, this problem occurs when you have not installed the correct frameworks that are also required by these modules.
In the case of the modules you mentioned however, I don't think they require any sort of additional frameworks to operate...but then again, you should check the release notes on that.
The magazine module is quite old I think...it might not work with the latest version of Xoops.
I presume you uploaded the correct top-level module folder into the modules directory (depending on how the module was zipped up or wrapped, this can sometimes be tricky).
Hope that helps.
jeffgr