you should be able to login to TM via QS.
Then travel to the teamviewer website and download the full version for the correct operating system( windows/mac/android) to her desktop
http://www.teamviewer.com/en/download/index.aspxyou may be able to run the application form the desktop, you may have to disconnect from teamviewer and call your mother and instruct her:
double click on the downloaded file on your desktop.
When asked if you want to run or install choose install.
when asked if you would like to setup TM for use later choose no.
when asked if you would like to setup a TM account choose no.
once TM is set up, click the icon to bring up the TM window
choose Extra/Options
check mark the box that says "start Team viewer with Windows"
now look on the left, and click on "security"
you will see two boxes for password, type a password of your choice in each box ( must be exactly the same).
under "rules for this computer"
windows logon, chose allow for all users" form the drop down
under access control choose
"full"
click "ok"
restart computer(remote) , it should not restart with TM running and you should be able to access it remotely using the password that was typed in