Sounds good! Uploading pictures is very simple:
1. Transfer your picture to the computer.
2. Go on a site such as Tinypic, Imageshack, or Photobucket (you'll need to make an account for Photobucket, but it's free).
3. Press the 'upload' button and choose the picture you want.
4. It'll upload the picture and give you some codes on the side. You can either post the direct link (starts with http:) or you can post this code:
[ img ]url here[ /img ]
Only without the spaces.