If you want to review the code for the Login page, the files are in /Secure which can be found inside the mojoPortal.Web project.

If you want to merely login to your dev site, you will have to build the solution and then login by browsing to the dev site /Secure/Login.aspx.

You may be interested in the many development videos we have, they will answer a lot of questions.

HTH,
Joe D.