guys apologies if its in the wrong place.

but I dont know where to post it.

I have tried recently to upload sopme photos ( for the photo competition etc) but there is only a 1mb limit when I go to add attachment. as Ive already uploaded 3 pics, this only leaves me 200kb of upload left.
how do you delete previous uploads to allow you to upload anohter pic if you need to?

sounds really stupid I know, but I've looked all over and I cannot figure this out!