I saw a few threads where ppl mentioned they were using Dotproject, so thought this might interested aforementioned ppl:
The ultimate Widget to track time and task status for the server based open source project tool dotProject.net Release V.2.0.1. It's all you need to proceed user based tasks and projects. This tool gives what all dotProject.net users always wants to have to become more efficient.
http://widgets.yahoo.com/gallery/view.php?widget=38998