Hi, thanks for your reply.
I've just tried uploading to my remote server and the images appear all ok. However, I still cannot get them to appear on my local server.
Is there any chance that I could be editing the wrong php.ini file and this is why the changes are not taking affect?
The location of my file is Macintosh HD-Private-etc-php.ini
I open this using TextMate or TextWrangler using the show hidden files option.
If this is the correct placement of the file, do you have any other suggestions?