Need a PC remote program

I'm wanting to know, what program should i use to controll a computer remotely (over a LAN) that is not remote desktop, does not require loggining in (like remote desktop), can use inputs (keyboard, mouse), can monitor keystrokes/audio, can acess things like tskmngr, display messages on the screen, and can see the monitor. note: this is for parental regulation, i think my son is acessing porn, going around the filter we put in place, and want to prove my to husband that fact, and we can acess the comptuer with full administrative privelages...