Xperia Ice Cream Pureness - A couple of questions

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http://forum.xda-developers.com – I really need to get my post count to 10+, so I can post in developer threads instead of Q&A:) I just started using Xperia Ice Cream Pureness yesterday, after trying JJ´s Hybrid and MooDeD ICS. JJ´s Hybrid had great speed and battery life. However didn´t react to well to installing another launcher. The MooDeD rom just seemed a little to ambitious and confusing. Besides, the teenage antics of his was a little to much. So I switched to Xperia Ice Cream Pureness and it seems like a great rom. However, like with JJ´s I would like another launcher. But when I tried to install Nova (HowTos)