Login form on my site isn't getting showed properly - Joomla! Forum - community, help and support

hi gang:),

login form on, create account form , forgot password forum on site isn't getting showed (please see attachment)

i using latest original joomla language files 2.5.5 en-gb ...

i uploaded latest original joomla language files 2.5.5 en-gb make sure site doesn't miss laguage files .. login form still not getting showed properly.

i clueless , have been pulling out hair last few days. did make mistakes?

thx!