upload photos to a site like photobucket, then when posting open another tab in your browser and open photobucket, click on the IMG code under the pic you want to copy, then switch back to the forum tab and click the insert image button and paste it in the window provided, make sure to delete the extra at the begining and end of the code if your pasted code looks like this:
[IMG][IMG] code here [/IMG], it should look like this:
It's pretty easy, I think when you sign up for photobucket it asks you what size you want to upload photos and you can chose one appropriate for forums.
Unfortunately that uploader sucks compared to photobuckets, you can't see any of your pics, it's slow, can only upload 4 at a time...etc! I know i made a long explanation but its so easy once you try it. Try both ways and see what you like and go from there!!!(2thumbs)