Patches and discussion for Ensoniq VFX family

Hello.  About a year ago, I asked you all about the VFX SD I own and 
the problem of "calibration error".  You gave me good advice about 
repairing it, but---it is now a year later, and it still hasn't been 
fixed because I haven't the nerve or know-how to do this.
I explained at the time that I simply play it; I have no knowledge, 
or use, for the other capabilities of this instrument.  I know, go 
get another, simpler keyboard!  Problem is, I LOVE the sound of this 
thing (when it used to work!) and cannot make myself even consider 
another brand.  But---the more I read online about all the Ensoniq 
models, the more I need a glossary to explain what I am reading about!
Or, at least, a website that will explain, in layman's terms, what a 
particular model will provide.  For instance, I see on 
Ebay, "sampler" keyboards----what are they, what can they do, and how 
do they differ from "sound stations"?  All I want is an Ensoniq, with 
that MARVELLOUS sound that will put out a variety of instruments, not 
just piano, but without all the composing/arranging capabilities.  
Can anyone here give me a clue?