Im looking at converting an existing site written in Coldfusion to PHP/MySQL. What i would like to do, is find a "pre-written" e-commerce application written in PHP first, so essentially i will be importing the data into that.........

I have googled around, and have came across a few examples, eg, www.oscommerce.com looks fairly good, BUT, - I am also looking for an administrative order processing backend as well, whereby people processing orders can log in to an internal page, process the order, and mark it as it goes through various stages, eg, payment taken, awaiting collection, goods dispatched etc etc.

Any Ideas of something that does both the front end and back end?