Use a keylogger
Recommended - "perfect keylogger"
Theis software can be configured to mail U the screenshots and Keypress logs etc
It is in complete stealth mode.So nobody can know about it
But the problem is that "key loggers are detected by anti viruses So u have to configure your anti virus to ignore this file"
Also try - User Logger (
http://chemware.co.nz/usrlog.htm),It has many features U asked for