Go to the bottom of the page and look for the "post a reply"
tab. Its right next to the "post a topic" tab and right above
the "prev|next" tab.
Go to "attach a file", right below the "options" line.
Click on the "browse" button.
Find your file and select it. The link should be in your browse
button space.
Add your text in "this" reply space if needed.
Then submit reply.
Lets see if it works!!!!!!!!!!