I'm puzzled by that message you are getting to deny uploading the photo given, Toby.
Ive checked the forum attachments folder and that file name is unique, so should be able to be posted.
Ive now had a look at the Attachments settings and the names of the files which are already uploaded. Done see any reason why your photos can not be uploaded.
I'll check into that in more detail later today.
Do you get the same message if you try another photo?
Dont try to upload the one you sent yesterday as it does already exist in the forum attachments folder.
When you click Attachments, it shows this info Toby:
Allowed file types: txt, doc, pdf, jpg, gif, mpg, png
Restrictions: 4 per post, maximum total size 192KB, maximum individual size 128KB
I'd recommend you do one photo per posting to avoid problems.
To rename a file:
Open the folder on your computer.
Right click on the file name.
In the shortcut options, click Rename.
That will allow you to type and change the name of the file.