1. You should consider disabling magic_quotes_gpc

Can someone explain in brief how do i do this?

2. Setup was not able to write to the file change RewriteBase match the install folder.
   Either make the file writeable or set RewriteBase in your .htaccess file to /.

Hoow do i do this?

3. Perhaps there was a problem with the upload. You should check the following files:
   ../zp-core/i.php

Please help me out.

Thanks in advance.

1. This setting is typically changed in your PHP.ini file. You may have the ability to edit this file as one of the tools provided by your ISP. Alternatively this INI setting can be made in the .htaccess file. Someone has posted how this is done in one of the threads on this site. Do a search.

2. The permissions for the .htaccess need to be changed to (most likely) 0777. You may need to set the permissions on the folder you installed zenphoto in to this value as well. Also do a serach on this topic for other ideas.

3. Re-upload the zenphoto files. Probably the i.php file did not get uploaded the first time.