Firstly get yourself an account on a photo hosting site, so that your photo is hosted on the web and not on your local PC.
Both photobucket (
http://photobucket.com/register.php?link=topmenu ) and imageshack (
http://imageshack.us/index.php ) are known to me there may well be others..
I use photobuck and it is fairly easy to use.
Photobucket1. Register on the site ( free ).
2. Upload photo's from your PC to photobucket :
Use browse to select the picture you want off your PC. Select it and then click submit. Wait until photobucket tells you the file has been successfully uploaded. (you can then name it and place it in albums if you wish but there is no need if you just want to post it on here.)
To insert the picture into a post on this site. 1. Scroll down to your uploaded picture on photobucket and copy the img tag (if you hover over the pic you want a box will appear underneath and if you click in the img tag the bottom one if will come up with the message copied.)
2. Then simply come back on to your post on the Welham site and right click and paste that link into a post. It will just appear as text put when you press send it will upload the pic.
If you want to have a practice try putting a pic on this thread.