In the next VS release they are fixing some of the issues with Source Safe but only for compatabilty reasons.
There is actually a completely new version control system being included - far more useful for a corporate environment as it supports things like access over HTTP (great for remote users) and the ability to have certain requirements met before code can be checked in (e.g. must have unit tests written, must achieve a certain % code coverage, x amount of peple must have peer reviewed the code and approved it kind of thing).