2 problems:

1) I do not have access to image adjusting tools at work, and the online ones I've seen are either blocked at work, or do not function properly. Remind me to make a PHP interface to ImageMagick soon. I use a PHP image upload thing to get stuff from my camera phone (or desktop) at work to my server. I might as well build some scripts to crop, scale, adjust color, contrast, etc.

2) Absolutely asinine Blogger limitation. It's not a thumbnail, the photos are clickable to show the full-size one, but it uses CSS to scale the images. Hey, I don't like it either.