WP Login Redirect

Hello,

My programmer recently integrated my wordpress blog into a social networking script Dzoic Handshakes. After it was integrated, when I try to login to my WP admin: http://pokervipzone.com/news/wp-login.php, I get redirected to my index page? This has never happened before and Im really not sure what is wrong. My programmer loaded and it currently working on a new theme as you can tell from the unfinished page. I’m wondering if the theme is bad? and maybe it is causing the issue? I have other themes that were working previous to this. Is there a way to load a different theme without logging into the WP admin area? Please let me know of any suggestions. Thanks very much,

Brandon Lam