Cartesian time/distance algorithm

Looking for someone that is very good with trigonometry that can help with an algorithm in VB.NET. Information I have is starting X,Y, ending X,Y, speed, time of last update and direction. My current algorithm is not correct. The algorithm should calculate X,Y at a given point in time. For example, I call the funtion 100ms after the object has started moving from it's original location. I need to simply know the current X,Y based on time from last check, using speed and direction. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform WinXP