OK, fixed.

Strategy number 2 worked like breeze.

I can't prepare a longer explanation now, as I'm doing a short trip, but anyone interested in GiJoe's Cache hack adapted for xLanguage, just send me a Private Message to Nachenko in xoops.org

GiJoe. mi modifications are just a bunch of lines of code, and my stuff is fully compatible with sites that don't have xLanguage installed. If you're interested, PM me in Xoops.org for details.