Looking forward to trying this Polls product out after buying a membership...however did expect to get an install error...see below. Tried installing com_communitypolls_v1.5.2.zip...is that right?

JInstaller::install: SQL Error. DB function failed with error number 1005

I have Jomsocial installed but not Community Builder.

I am running:
PHP Built on: Windows NT ICDWPCOMMWEB01 5.2 build 3790
Database Version: 5.1.32-community
PHP Version: 5.2.9-1
Web Server: Microsoft-IIS/6.0
Web Server to PHP interface: isapi
Joomla! Version: Joomla! 1.5.15 Stable [ Wojmamni Ama Mamni ] 05-November-2009 04:00 GMT