MDSP compressorSC in SX2

[bool]

First: thank you for this gem!

My question is: is it possible and how exactly should I set up compressorSC (3input version) in Cubase SX2 for sidechaining? Can it work with the method described here for another compressor and how?
http://www.kvraudio.com/forum/viewtopic.php?t=72851

Reason is I'll have to do some work in a place where they have SX2 and a so-so computer (some Athlon XP I think).

I'd really like to have a sidechaining version of MDSP compressor working, as it is not only good sounding but insanely low CPU hit (my other option is vanilla compressor, also free and good, but MDSP is quicker to set up as far as I tested at home - not in Cubase).

I'm currently recruiting the "best of" free plugins which don't require installers etc. to collect and transfer them on usb.

Can someone test the sidechain version for me (or describe the process if it's known to work) as I don't have access to SX at the moment, and I'd need a sure-fire solution - i.e. no experimentation at the site.