Hi apollo7,
Actually this is going to be bit tough but let me see what I can do... I am busy with my engagements and it is become hectic day by day so I cant promise you anything right now. But you might want to register a plugin on RetrieveMultiple and debug the code to see whether you are getting the results or not. Once you have the result set filter that result set based on your conditions.
Regards,
Chinmay