Which program should I use for uploading - editing - posting to web?

Hi Donna

There's free online storage, editing, and sharing support right on this very site where you posted your question. The user account you have provides you with 2 GB free storage.

Check out (and sign into): http://www.photoshop.com/tools/organizer

Login there, and see Upload. Upload images from your computer, the images you've copied from your camera. Once images are uploaded, select your image, or albums you've created for your images, and click Share. One of the options gives you a link to post to Facebook, your Wordpress blog, etc. Or just share links to your albums hosted on Photoshop.com

Photoshop Elements 10 would be a good choice for more advanced editing at a modest price ($99)

Try Photoshop Elements 10 free for 30 days: http://www.adobe.com/downloads/