I use tinypic.com. To upload to there all you have to do is choose the pic you want, (whatever size it is on your PC), and use the, 'resize', option before hitting upload. Once uploaded it'll give you several options to choose from depending on where you're pic is going. I choose the, 'forum', option, (or whatever it is; it's obvious when you're there), and copy the URL from there and hey presto... ! Correctly sized pics! I have a good DSLR that takes huge pics but during the upload, all is taken care of... No need for Photoshop or anything...
I'm sure they'll have similar options on photobucket. BTW, the one you've left up is still bigger than 800 x 600 so you might as well leave the others up too, (or try a resize on upload. ).
It's not a huge deal but as HMike has shown, some just won't read your posts in the current format...
Now you just need to make your Avatar a tiny bit smaller....
Just kidding. The pics only just go out of shot for me now because the avatar is larger but if I step over just a tiny bit then all the text is visible asI scroll down so much improved.
Thanks for taking the time to get to grips with that one. Now, if we can convince everyone to make that effort!
+1 for persevering! [EDIT: well I would if it'd let me! D'oh!]