Just a side issue really, but if you want to include links then you can just paste in the URL (address) like this:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280357990880 The forum software will understand that it is a web address and make it clickable.
But if you want to make your posting more professional looking, then you have to include a little HTML like this:
TEXT where URL is the address of the link as above,
and TEXT is the underlined text which you can click on. So for example it might look like this:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280357990880>here
(The forum software will recognise the URL part above as a link and make it clickable, but don't worry about that.)
Note that for this to work you'll also have to have the Enable HTML code in message switched on (in options, below your username and password)
You don't have to do anything else special, you just type that HTML in your message wherever you want a link to appear.
When you press the Preview/Post Message button, your HTML will be rendered, and you should see the link working. You should probably test it before you finally press the Post this Message button.