A while ago I did a post on how to get SSIS 2008 working with Team Foundation Server (TFS). But beware, you shouldn't work with two developers on one package at the same time! That will cause problems with for example lineage id's. Merging two versions will be nearly impossible. So how do you prevent that?
Solution
Go to the Team Explorer pane in Visual Studio (BIDS). Right click on the solution and select Team Project Settings and then Source Control. Now you can uncheck the checkbox for Enable multiple check-out.
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| Disable multiple check-out for SSIS 2008 |
Note: SSIS 2012 seems to work better with merging.