Greetings Mario!

First of all, I have a question for you.  What made you decide to get MM-15 Premium?  After all, it is over two years old and the most recent version is MM-17.

I have MM-15, and I will try to help in any way I can, however since it is such a big topic you'll have to limit yourself to more specific questions.  One thing you can do is to search youtube for tutorial videos.  Unfortunately, you will probably be disappointed.  For instance, the MAGIX produced "tutorials" are more advertisements than tutorials.  In other words...not very helpful.

The best thing you can do is to fully read the owner's manual at least once, and re-read any especially useful parts.  The owner's manual can be accessed through the Windows start (programs) menu or using the HELP menu in MMM.  You should access it anytime you have a question.  It is incomplete, but still useful.

The other thing to do is to use it.  Create a "practice" project and just go through all of the menu's one by one to see what's there and what it does. Play with all of the effects, the mixer, and the mastering suite.  If you don't know what they do, you can search Wikipedia for a pretty good explination. Then, if you have any questions, we'd be glad to help.

Revolta 2 is a pretty standard VST analog synth emulation, with two oscillators, filter section (low pass. band pass, high pass), ADSR amp section, noise source, two assignable LFO's (low frequecy oscillators) for modulation, two possible effects, and a 16 step sequencer.  It works in conjunction with the Vita MIDI editor and controls all of the supplied VST instruments in Vita.  Again, it is too broad of a topic to explain in detail, so you'll have to limit yourself to specific questions.  If you don't know how to operate a vintage synthesizer, you may want to do some research on the www or Wikipedia.  Better yet, find someone who owns a real vintage analog synthsizer.  In either case, you'll need to do some reading and then simply play with the controls to truly understand their function.  I don't know what you mean by "archive".

Yes, you can add more VST instruments and synthesizers in MM-15.  You can find many for free on the KVR Audio and VST4Free websites.  When you get to that point, we can help you with the installation.

You can import any supported audio file (see the owner's manual for supported file types) using the File Manager (tab) in the media pool.  You must NOT be in Easy Mode (click the switch just below the MAGIX logo).  Find the file on your hard drive and drag it into the arranger just like a soundpool object.  Then, you can manipulate it the same as any soundpool or audio object, however it will only be a single track object (you will NOT have different instruments in separate tracks since the tracks have already been mixed down).

I hope this is of some help.  And relax...you're not going to master this software in one day!