From the BURP Website:

BURP aims to develop a publicly distributed system for rendering 3D animations.
Currently this is an alpha project which means that certain restrictions apply. Not all uploaded sessions will actually be rendered right away - and sometimes you will not be able to contact the schedulers for short periods of time.
Please note that this project is still in its testing phase and does not yet provide the security and stability of a full-blown BOINC project.