For working effectively with Expert view in QTP, a strong scripting knowledge is essential.
Below sites can be very useful as I have found out...
MS Script Center..
Good Site for Wscript
Usage of fso(file system objects)
Scriping Answers Forum where an active online community can be found
SQA forums is a great place to start learning most of these as well.....
Good portal to Learn VBScript
We are progammers, look up Advanced QTP site for very advanced information about QTP
Ankur's Site, one of my collegue, maintains updated and useful information
QAI : Testing Institue