Survival tree analysis

#1
I need to perform a survival tree analysis. I have :
- 1 independant variable X (numberic variable)
- 1 dependant variable Y (overall survival time (censored data))

How do you do to perform it? Is SAS software can do it?
Can we split only in 2 nodes or more nodes for the same variable is possible?

Thanks in advance for your help.
 

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Ninja say what!?!
#2
To show you exactly how to do it will take too much time and space here. I would suggest looking up kaplan-meyer curves. You could also try Cox-proportional models, but I wouldn't recommend it for someone starting out.