itms-services: don't show hostname during installation?

We have an enterprise app that we install over the air. We created an html file with an itms-services link that points to our plist file:

<li><a href="itms-services://?action=download-manifest&url=http://www.ABCinc.com/APCAPP.plist">

Install ABCAPP iPhone Application</a></li>

When the user clicks on this link an AlertView pops up asking:

www.ABCinc.com would like to install "ABCAPP"

with Cancel and Install buttons in the alertview.

I'd very much like to remove the hostname(www.ABCinc.com), or use a generic name like: ABC would like to install "ABCAPP" -OR- "Install ABCAPP"

I've been unable to find any documentation about the itms-services URL or the plist file that would allow me to make this change. Has anyone successfully done this?