Need answers to a download feature

Hi.

On our work website we wish to add an option where, once customers pay us via our shopping cart that they will be able to download files from our site.
Kindda like how you can download web templates and you can save them to your computer.
Thats exactly what we are looking for. I found nothing with a few searches and i think that because I dont know the name for this.

What type of program would do this and what type of language can we use?.
I know basic MYSQL,PHP.
But I got a friend who is a programmer so maybe he can help lol.

Thanks

check out CMS ( content management programmes )

Joomla and Subdreamer

Joomla if free, and subdreamer is paid for, but really joomla is quite complicated so i would go with subdreamer

both these are capable of doing what you are after

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