I tested VM_1.1.4 RC1 with joomla 1.1.5_test on php_5.3.0 version and have errors :( . see image pls, I hope VM_1.1.4 can integrate into joomla 1.1.5 for future. Thanks your jobs.
[attachment cleanup by admin]
Either down grade to php5.2 or turn off notice reporting in php5.3 or see http://dev.virtuemart.net/cb/issue/2719