I hate to sound like a broken record, but I have this feeling that Debian support is waaaay down the priority list at SWsoft 
There was supposed to be a beta in November, and since then, Plesk 7 for Windows, Plesk 7.5 Reloaded, and Plesk 7.5 beta for Windows has come out......kinda shows where their priorities lie.
There was supposed to be a beta in November, and since then, Plesk 7 for Windows, Plesk 7.5 Reloaded, and Plesk 7.5 beta for Windows has come out......kinda shows where their priorities lie.