SM0SS

I recently got a new system and decided to upgrade to vista. However, now SDC crashes whenever i attempt to do anything in it. My system specs are: Intel core 2 quad Q6600 2.4 GHz 4gb of ddr2 667 ram Geforce 9600 gt 1gb DFI P965 Motherboard

I pre-ordered on the 30 of march, can I still dl the beta, or do I have to wait for Beta 2.