OFFLINE CHANGES (URGENT!)

[Marco A. Ferreira]

Fellows,

I saved a project that was published in the Project Server as a MPP file. I
made a few changes in the schedule, resources and added a few tasks.

Then, when i came back to office i tryed to publish and overwrite the
changes in the Microsoft Project Server, but it was rejected.

Is there a way to work offline in a project file and then publish the
changes back to the server?

Thanks,

Marco A. Ferreira
(e-mail address removed)