Ill assume your installed it from Cydia?.
Start up Mobile Terminal.
type in these commands..
yellowsn0w -h (Help command will list our all available commands)
After your done, "killAll Terminal" Or just Swipe up and choose Exit.
Im sorry i dunt understand ur question...
but if u look for the commands for unlocking will be ,
1.yellowsn0w -c (require this only if u have 0.9.5)
2.yellowsn0w -l (thats if u have 0.9.4 if u have 0.9.2 u change |l| with |q|)
i just guessed but hope i helped