@AURON570: Okay, lets see if I can explain this...
I don't know how you managed to make separate duplicates of those images, unless you manually uploaded the same set of images more than once, I can only chalk it up to the wiki having a random glitch. It happens rarely, though usually it's just one or two images. I haven't seen an entire set duplicated before.
That said, the reason the images are still showing up after you removed them is less of a mystery. All you've done is remove them from the "Episode #15" gallery. You didn't remove them from the series page (the "All Images" gallery) or the episode page itself. Go on one of the images, look at the pages it's attached to, and you'll see "Sunny With a Chance of Beans (All Images)" << that is the gallery of images that appears on the episode page.
What I suggest you do is go to the All Images gallery on the series page, remove the duplicates, then go to the episode page gallery and remove the same duplicates there. Check each image to make sure it's one of the ones you've removed from the series page before you remove it from the episode page, otherwise the galleries won't match up. If all that is too confusing, let me know and I'll do it for you. Don't forget the duplicates are still in your personal image gallery too, so you'll want to remove them from there as well.
As for the second bug, that's easy to work around. Basically, the top few rows of images are repeated, there aren't actually any physical duplicates in this case. Just scroll down a bit until the first images appears again and you've scrolled past the repeated images.