Create UML diagram for project

I am looking for someone to create a UML diagram for an open source project I created. The project is called Irrlib, which is located here:? <[login to view URL]> I am specifically asking for a UML diagram, just a diagram that is high level that new programmers can look at and be able to understand how to use the library. I would prefer that the diagram is created using open source software. Please post how long it will take and what application you will be using.