I love music maker! I've been using it since version Music Maker 7.
But I also use fruity loops.
I typically create wav's with flstudio and use them for production inside magix studio, but I wonder if anyone knows how to get Magix's VST's to load inside Fruity Loops or the other way around?
As far as I know, no, you cannot use the Magix instruments in other programs, because they are not real VSTi's. I presume that you are talking about the instruments.
If you mean other effects, like essentialFX effects that come with MMM, then again no, they cannot even be used in other Magix programs like Audio & Music Lab or Movie Edit Pro. Magix told me that they were made for the particular product, which is pure bunk. Magix sells them spearately and they can be used in all of Magix products, like Magix VariVerb. Thus, I doubt that they could be used in other programs.