hi
plz let me know how to change the name zen photo to my domain name ? its so urgent for me ....!!

I do not understand your question.
Could you please be more specific ?

hi i want to change the name of zenphoto to another name. can u say the process of changing it

If you installed Zenphoto in a sub folder named "zenphoto" so your url is www.domain.com/zenphoto and you want www.domain.com please read:
http://www.zenphoto.org/news/how-to-move-my-installation-on-the-same-server-