You can post them if they are in your hard drive Laurence. Click on Go Advanced - go down to Manage Attachments - click on a Browse Files - find the file in probably your Pictures or your Documents in your computer - Open the file - it will show up in the Browse Files list - then click Upload and wait for it to upload to the forum - then click Close Window. The file should show up in the manage attachments area. It's only intimidating the first time you try it. It is easier if you open a second window on your computer of router forums so that you can go back and forth from these instructions while you follow them.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.