General Support: Plogger 2.1, removal of large images?

Hey guys, i still use 2.1, purely because i cant get the integration of the new one down and just dont have the time to start themeing! So alas i'm still with 2.1.

I want to remove the large images on my server (the really large original ones), just leaving the medium and thumbs, is this possible? I've removed the link to large images so take it they have no use now, other than being serious space hogs on my system! Now i know that the only way to delete pictures with plogger on my hoster is by either using the admin login or by using my hoster to directly delete them for me!

I would really apprecaite some feedback, i've had a search and can't find much that helps