Quoting bharani kumar bharanikumariyerphp@gmail.com:
no , my drupal version is drupal 5.7
The CVS branch and release tags for CCK are out of sync so I can't see the userreference.module for that version. It could be that the out of sync tags in CVS are the issue with the installed version since the project module depends on those tags to build the file.
Earnie -- http://for-my-kids.com/ -- http://give-me-an-offer.com/