[link|http://kfocus.sourceforge.net/|KFocus] is the only one that springs to my mind. I doubt it will do MS-Project files? Your best bet would be to find one that can export to a format that MS-Project can import and then convert it in a Computer Lab before turning it in.

One of my projects was to create a project Management software then port it to Linux after testing it out in Windows.

Since Microsoft doesn't always document the file formats of their Monopoloy-Ware, it will be hard to find one that will read and write MS-Project files unless someone hacked the file format that MS uses?