if you an administrator you should see a delete button or edit when you view someones garages
as for the link to vbGarage
in the postbit template find where you wish to put the link either an image or text link
HTML Code:
<a href="$vboptions[bburl]/vbgarage.php?do=view&id=$post[userid]"> <img src="images/garage.gif" alt="Check out my garage" border="0" /></a>