Welcome to the forums.
There are problems installing in virtual machines unless you have enough memory allocated.
However, your problem is different. According to the screen shot you are trying to install this version
which is the Network Edition of Zimbra for SuSE Enterprise Server 9 on (I assume) openSuSE 10.1 - that's the wrong version. The install even told you it was the wrong version.
You either need the OSS version for openSuSE or you need to install SuSE ES9.