hello im new to iphone

my iphone are jailbrake+unlocking using ziphone...but i think it is not safe coz i heard alot people complaining about ziphone...so how can i change from ziphone to iLiberty or WinPwn

ok i just restore it using winpwn...but after restoring i still have my old application...is it retore?

ok i now restore completly with winpwn...now im creating the custom ipsw...so what basic application should i add for jailbreaking? or can someone post thier ipsw file?