Sure LeeRoy....
As Frosty said, it's ALL about resizing your pictures before doing anything with them - especially if uploading them directly to an album on this site.
I have my pictures uploaded to an external host site. In my case, it's flickr.com, but there are lots of other sites like Photobucket and you can even link from Facebook, if you do it right. Essentially, you need to know the actual web address of the picture you've uploaded. This address has to end in ".jpg" or ".gif" and nothing else. There is a little button above, second from the smiley face that is for inserting a picture... this is where you add the image web address. When you upload a photo to Flickr, it actually keeps five copies of your picture, but all in different sizes. You can find the individual web address for each size and use whichever one is best - I usually go for medium size when I post.
Here's an example of what I mean...
Square...
address... ()
Thumbnail...
address... ()
Small...
address... ()
Medium...
address... ()
Large...
address... () Hope this helps!