Multisite privacy isn't working on network with domain mapping

Multisite privacy isn't working on network with domain mapping. It just show the regular page as it wouldn't be turned on. I'm runnning it on WP 3.4.1 and some Domains mapped via Domain Mapping Plugin. I just signed up for a month at wpmudev only to be sure i get a high quality plugin that for sure will work out of the box (other free plugins doesn't worked for this purpos). Now i see that your plugin have exactly the same problems with this scenario. Is there any fix or if there isn't at least a chance that i will get my money back?!