Hi Nathan,
There aren't any dashboards or configuration screens in the add-on itself that you can view.
Instead, install it on your search heads and indexers and then don't worry about it again -- it just needs to be present there to do work behind the scenes for the data that comes in.
To collect the data with this add-on, install the add-on on a forwarder that is installed directly on your Microsoft IIS server, and then follow these directions to configure the input: http://docs.splunk.com/Documentation/AddOns/released/MSIIS/Setupaddon.
If you are just doing a POC and you don't have a distributed Splunk platform deployment, you can just install a full Splunk Enterprise instance directly on the Microsoft IIS server, install the add-on on that, and then do everything right there.
Once you have the data coming in, you can add this add-on's three prebuilt panels to a dashboard to kickstart any visualizations you want to make. The instructions for accessing an add-on's prebuilt panels are here: http://docs.splunk.com/Documentation/AddOns/released/Overview/Prebuiltpanels
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