Join Buttons Fatal error after D7.1 upgrade

I got the following error when folks tried to join by clicking any of the join buttons.

Warning: require_once(/home/maddx/public_html/templates/tmpl_maddpoets/scripts/BxTemplJoinPageView.php) [function.require-once]: failed to open stream: No such file or directory in /home/maddx/public_html/inc/utils.inc.php on line 861

Fatal error: require_once() [function.require]: Failed opening required '/home/maddx/public_html/templates/tmpl_maddpoets/scripts/BxTemplJoinPageView.php' (include_path='.:/usr/lib/php:/usr/local/lib/php:/home/maddx/public_html/plugins/phpids/') in /home/maddx/public_html/inc/utils.inc.php on line 861

I am using my own template with very little css. So, I copied all the files from the uni/scripts folder and installed them in my template/scripts folder. Everything works fine 

just copy the BxTemplJoinPageView.php from the /templates/tmpl_uni/scripts direcctory to your tmpl_maddpoets/scripts directory.

This is a new file for V 7.0.1 and must be added to your existing templates

it works. but there is one error

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; GTB6.4; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729)
Timestamp: Mon, 29 April 2010 04:52:27 UTC

Message: 'Button' is null or not an object
Line: 1
Char: 108030
Code: 0
URI: http://*******.com/join.php