You can log in to Mobile Install by clicking here.
Once you have been set up as a Mobile Install User, you will receive an email with the link above, as well as your login information with temporary password:
On the Mobile Install web page, enter your login email:
On the next screen you will enter your password.
The Dashboard will then open where you can manage your Task, Service Orders, Calendar, etc.
You will likely want to change your password from the temporary one that was provided for you. Do this by clicking the icon next to your username in the upper right corner of the interface and click Change Password:
You may also want to change open My Profile to change your preferences, click here for details.