I just posted my first pic yesterday. I did it by:
1. uploading the pic into my library on this forum.
2. opening the pic in my library.
3. copying the url (address) in the address window in the browser at the top of the scrren.
4. Pasting it in the box below your post below with "my Library" next to it.
5. Hit submit and presto there you are.
Don't know how to resize a pic. You have to start out by sizing it with photo software. 640 X 480 pixels so do.
Good luck and I hope you never haave to pull the cord on the sospenders.