I use photobucket. It's very simple, and free. Once you have your pics in photobucket, you can resize them, and just click/post them over here.
And welcome to the boards
Heres what I do. Go to photobucket.com upload your pic and once on there click underneath the pic where it says direct link. Then come to SWF.com write your post then go manage attachments right click where it says URL address and hit paste.
What I do is save the pics I take in "my pictures" folder (windows) and when I want to add a pic to a message I post here, I just scroll down below the message and click on the link that says "manage images". Then click "browse" and locate the pic. I double click on that and click upload. That's it.