Awww...don't feel like a loser, Rhonda

you'll get there. It's a really pretty image. The only trouble is that it's almost as tall as it's wide, so you have to shrink the width way down to get the height right -- either that, or change the aspect ratio, but then you get a squished image. What you want to do to start is to make an image that is roughly three to four times as wide as it is tall. Then you can fit in whatever elements you want, and when you're done, resize the height to 150, keeping the aspect ratio, and you'll get a perfect size (visually) You do still need to check the file size, to make sure it's not over 30 Kb, but unless you're working with ginormous files, you should be OK.
Is that any help?