Register page doesn't take effect

Hi,

First of all, accept my appreciation for wonderful plugin creation.
Custom login page properly working with my all custom setting of plugin but in register page, background image doesn’t set properly. Background image cut in bottom of page. Check more from my following link

http://www.giteshtrivedi.com/blog/

Please guide me how to resolve this issue? Thanks in advance.

http://wordpress.org/extend/plugins/erident-custom-login-and-dashboard/