EPM Project 2007

Hii everybody...

I am working on EPM and Project 2007....My problem is I am putting some start date and End date to tasks and Publish the project to server...now If the resource is updating the Different Start and End date...then the End date is changing according to resource's entered date...but the start date is not getting changed....I am using Forward scheduling method...

Please help....

On the Project menu, click Project Information.

Do one of the following:
To schedule from the start date, click Project Start Date in the Schedule from list.
To schedule from the finish date, click Project Finish Date in the Schedule from list.

In the Start date or Finish date box, enter the date that you want to schedule from.

More information here.