You just need to configure it for debugging ASP.NET
Right click the web project and choose properties, then click Configuration Properties > Debugging
Set Enable ASP.NET debugging to true
enter http://localhost/mojoportal/Default.aspx for the Start Page
now change Debug Mode to URL and enter http://localhost/mojoportal/Default.aspx for Start Url
click Apply/OK
right click the web project again and choose set as startup project
You also need to create a Virtual Directory mojoportal pointing to the web folder under your default web site in IIS
Now you can use F5 or Play button to start debugging (put build in debug mode)
also in Unleash It make sure you add a file mask for .htm and .html or it won't deploy those files.
the project is set as a class library rather than a web project to avoid problems with svn
you may also want to review
this info to add some things so that it is easy to add .aspx and .ascx to the project for your own development