Picture problems

[4jacks]

Ok
first let me say i'm a computer moron


everytime I try to post a picture I get a little red x
for the most part i keep all my digital pictures on www.freeservers.com
I have a web site thier http://4jacks.faithweb.com I haven't really done the web site yet.. it's not really a web site, I mostly use it for web space. For example i have a picture of my car called civic005.jpg on that site, and I can go see it at
http://4jacks.faithweb.com/civic005.jpg
But if I hit the IMG button Something weird happens.
It says enter text to be formatted, and starts me out with
"[IMG]http://[/IMG]"
So If I type in the web address of my picture I get
"[IMaGe]http://4jacks.faithweb.com/civic005.jpg [/IMG]"
i entered IMaGe instead of IMG so it shows up as the command line.
once i'm done and hit the submit new thread button, i'm taken to my post and Everything is OK.. i can see my picture on the post. Then if I come back, it is a red box, if I edit it , its ok, if I come back, it's a red box.

Can someone help me out