Great, thanks once again. That's the uploading of the jpeg photos sorted.
There is one little bug in Chrome and Firefox. If a user tries to upload a photo over the limit size - they get the validation message. If they hit cancel, they are brought back to another page and if they attempt to retry to add a member including a photo, the validation message is still displayed - see screenshot attached. This does not happen in Explorer.
Also on the Update_member.php page I've entered in the exact same upload validation details. It won't upload files larger than 512kb (correct) - but no validation message is appearing. The validation message appears in the add_member.php, which we sorted last night, but not in this update/edit page - see attached zip.