Hi SA,
It should be on you CCM (Under Plug-ins) already :)
Here is how to find the current version that is installed;
Finding the BAT Version
To find the current version of BAT, choose Help > About Bulk Administration Tool > Details.
To find the current version of BAT from Cisco CallManager Administration, choose Help > Component Versions.
If BAT is not currently installed, you can find the version of BAT that is available with Cisco CallManager without installing it. To do this
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Step 1 Download the BAT application from the Cisco CallManager Install Plugins window.
Step 2 Right-click the file BulkAdministrationTool.exe, choose Properties, and then choose Product Version.
From this good doc;
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_user_guide_chapter09186a00805560e8.html
Hope this helps!
Rob