General community photos?

How do I go about deleting one of my pictures posted in Community Photo Gallery? I am confused?
When I went into Media gallery User system..clicked media mgr...and then picked General Community photos.
Then went to EDIT..my pictures came up..but when I tried clicking on the
X under the picture to delete it.."nothing"???
Have I done something wrong?
I would like to delete one of the "koi" pics..sincethere's TWO & they are identical...oops.
ALSo..when I tried to add more
( 5 total) pictures..took over 1/2 hr. to upload ( so I finally cancelled out)
..is this unusual for it to take that long?

Leah showed me a trick for getting photos on here. She first puts them in photo bucket then copies one of the codes and posts it here. You don't have to worry about too many giggle pixels that way. I'll try to fix the photo and hope I don't erase everything.

Holy Cow! I got it to work.

Yeah John...
I use Photbucket all the time.
I did that with "My Africans" video I posted on here..and also
" My little Mennagerie". ( check them out.. )
I wanted to post some others to the
Gen. Community Gallery, tho..and using photobucket for that doesn't work.
I just went and uploaded from my PC files "individually"..and that seemed to go a lot smoother.
Thanks for the help!!