You need to "activate" the CLUAConsole.
To do so open your Baldur.ini directory and under Program Options write "Debug Mode=1" without the quotation marks.
Then under Game Options write "Cheats=1"
That should enable the console.
Load your game pause it and while paused press ctrl+space.
That should pop up the console
Now in the console window write
CLUAConsole:GetGlobal("LoveTalk","LOCALS") while you have the pointer on Jaheira's portrait.
That should give you your LT rating!
It's easier than it sounds!!!!!