ASP Script to generate XML

We have a? large? XML file containing stock market data from five different indexes. This data is? updated every 15 minutes. We need an ASP? script that will automatically parse the? XML file? every time it is updated.? The stock? data? needs to be sorted? by "net change" (netChange=lastPrice-openPrice). After sorting,? a? new XML file needs to be? written out? to the root directory. This file will? contain the? top 100? stock gainers. The new? XML data should be the same structure as the original, it just needs to filter out the top 100 stocks (thus, making the file size much smaller). This file will then be imported to a Flash widget which we already have completed. A sample XML data file will be provided after the project is awarded.