Amazon Browse Node Lookup

looking for someone to develop a stand-alone program/funtion (which would work alongside an Amazon project I’m working on) would accept one browse node ID (i.e. 3 parameters namely: Access Key ID, Secret Key and Browse Node ID) and which would return as a result an arraay containg all of the browse node's related Child Browse Nodes (which effectively exist underneath the node ID which we’d be passing to your program/function). We require variations to work at real-time with [login to view URL] (United Kingdom) and [login to view URL] (USA) and would require the source code (PHP or .NET) and basic instructions of use for each.