Quick Book API

Hello Friends,
I am working on QuickBook APIs.Actually I need to fetch the data from quick and insert it into database and display it in graphical format.I am got stuck in fetching the on selection like I want to read the employees on ListID. I tryed alot.I went through code which is given in help but not clear. Means I have problem in filteration.I want pass the ID of employee as parameter and want to read the whole record.
I read the all collection but Selection base it not being done.
U please help me.
if possible provide code even.
Regard
Girdhari Choudhary
NSI(India) Nasik