Ok I'm not sure what is happening but I will try and help.

First find the install logs

With Application Manager open click the menu button and select "Tools" then "Log...."

There will be a ton of stuff in there from previous successfull installs as well as error messages and fails.

You can save it if you want , I would just clear and then try to reinstall battlegweled.

Now go look at the log and only the errors from installing battlegweled will be there.

Save and post in here if you can

Tant