I need an add on to oscommerce for local delivery. I need the local delivery charges calculated based on miles from the store's location. I guess this can be done by calculating the distance between two zip codes or postal codes.
For example if the calculation done during check-out is 25 miles from the store then I need the charge to be a fixed amount, but if the calculation is 10 miles then I need a different fixed amount for that distance.
Please ask any questions if this is unclear. I do not want the basic "local delivery" module installed. It needs to be modified to calculate distance between zip codes.
I need to be able to install in a fresh install of oscommerce. I will need instructions on how to install myself.