I'm thinking you mean Active/Passive (since ony one of the node has access to SQL server at any given time), or do you have multiple instances?
Did you follow this procedure?
http://technet.microsoft.com/en-us/library/ms179530.aspx
Othwerwise - is there something leading you to think it's not stable? Are you testing it with a load on the server, or are you failing over only with low activity?
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Your lack of planning does not constitute an emergency on my part...unless you're my manager...or a director and above...or a really loud-spoken end-user..All right - what was my emergency again?