The links below have instructions for deleting photos.
iOS and iPod: Syncing photos using iTunes
iPad Tip: How to Delete Photos from Your iPad in the Photos App
Another Way to Quickly Delete Photos from Your iPad (Mac Only)
How to Delete Photos from iPad
How to: Batch Delete Photos on the iPad
(With iOS 5.1, use 2 fingers)
How to Delete Photos from iCloud’s Photo Stream
Thx but my problem isnt with deleting photos, i deleted all photos i could find on Photos app, and iCloud, i also checked via iTunes, but if i go into Setting->General->Usage->Photos there is still 661 mb of used space under Photo stream.
And 661 mb of 'wasted' space with this 'ghost photos' makes me rather anxious and twitchy. Is it just a synch lag and this will go away or will it bugger me forever till i decide do a complete reset?