You have to put the .jpeg onto a photosharing service. I usually use either:

imageshack.us
Or Photobucket

Since you can’t save the pictures directly, because of the way the Avs do their photo albums you ’ll need to circumvent it a little.

1) Open a photo editing program (photoshop, paint, etc)
2) Bring up whichever picture you eventually want to post on your monitor.
3) Hit Alt+Print Screen at the same time on your keyboard. This copies the window currently selected.(note: Pressing just print screen will copy the entire monitor image.)
4) go into your photo editing program and select "new"then Ctrl+V to paste the picture.
5) Edit photo as you want. Save it somewhere you will remember.

6) Open imageshack.us
7) Select image and then hit thebrowse button
8) locate the pic file you saved above and hit enter.
9) select resize image and use 320×240 for this board (or they start getting too big). If you skip this step the pic will be actual size
10) Click host it

11)You’ll be on a screen with a whole bunch of image pasting code. I don’t know why but you’ll have to the sentence go down to the very bottom of the page and click the + next to the sentence that says Show Advanced Linking.
12) copy the code in there… ignore where it says DO NOT Use Link Below when posting. Use FORUM Links above for posts
13) come back to this page and click the image button and then post in the code you just copied…