The target is slickedit 6.0. It used vbox 4.3. After 4 days hard try, still no result. Anyone know some good relative tutor please help.

This should help.
http://www.woodmann.net/fravia/dezzy_vbx43tut.htm

Visit http://tsehp.cjb.net/ and I am sure you will find some other other there. good luck.

EVC_ViPeR

Yeah, this tut is a very good one and I use it a lot.
But recently, I had some IAT problems while trying to rebuild the dumped target's import allocation table, but if you correctly disable
the iat encrypting like it is said in this tutor, you can easily rebuild the import table with procdump, then fix the OEP and the app works fine.