Image filename change?

We recently added the Aurigma uploader to our web site. The web site lists vehicles for sale, and therefore the uploader is used by van/truck/car dealers within their user area to upload .gif and .jpg images of their vehicles.

When I first implemented the uploader I could not find a way of renaming the image filenames before the images were uploaded to the server. So at the moment I upload them into a temp folder, and then use PHP to rename them and move them on the server. I have ran into trouble with this method however, so I am trying to see if it is possible at all to rename the images BEFORE they are uploaded so I can by-pass all my long-winded PHP code?

We want to rename the images to something of our choice, due to SEO, so we would rename it to e.g. ford-truck-london-1234.jpg and the thumbs would be e.g. ford-truck-london-1234_s.jpg. This would be dynamic however, so the names would change depending on the make of the truck/van etc

Is this at all possible?

Many thanks

So to clarify; the only way to achieve a filename change is like how I am doing it? - by using my own PHP code to move and edit the files once they are uploaded onto the server? There is nothing within the Aurigma framework which can do this?

Thanks