Actually the manuals are probably included with the versions you bought... you did buy them didn't you?
Try kazaa, google.com and Edonkey2000/Overnet. You must be able to find somekind of a guide for these synths there

PS: If you really did buy the synths, I'm sorry for the comment above

I'm pretty sure native instruments don't have .pdf versions of their manuals. Only hard copies which come with the box. There is a tutorial on one of the online magazines (I think Computer Music) on how to operate FM-7. Damn complicated I know. never heard of quadrasid before.

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1 out of every 4 people in this country are mentally disturbed. Look at your 3 closest friends. If they seem okay, then you're the one.

as said.. the manuall should come with the pluggin when you buy it.. best way to get it

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Daniel