Here is a great thread for Sharp renders.  There is a link to Peggy Walters' render tutorial plus some comments by Rutra:

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2756568

And here is another one where Rutra expands on the adjustments needed for Vue 7:

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2759242

Good Luck!