I'm running Rosetta Stone 3.4.5 under Wine 1.4 and i have to say it took my a while to have it detecting the language files. Anyway, the iso is perfectly mounted, all necessary drives are listed in wineconfig finally and Rosetta detects all the language packages I have listed.

The next annoying thing is that apparently there's no place whatsoever on my computer which has space enough to readily install not even a single language package into Rosetta Stone.
I tried setting multiple drives in wineconfig, at different locations but I keep getting an error of not enough disk space.

I couldn't find any thread about it so far, so I hope somebody could help me out.

Oh ja, I work with Lubuntu 12.04 with an rudimentary Windows XP still on my ASUS eepc 901.