Lanham User Security Setup

Hi,

I need help on using Lanham User Security Setup.

1. Customer has multiple sales persons doing bsiness from defferent territory.
2. Each salesperson has his/her own "SM Territory Code" and was updated to sales order, but not on sales lines.
3. We had a form to show sales lines and it is using lanham user security setup program to do the security filter.

So here is the question: How to make the filter first filter the sales order on "SM Territory Code" then only show the lines for a salesperson?

I use both S36 and S37 table in SetSecurity function and first SetFieldFilters on "Sales Header" then SETRANGE("Sales Line"."Document No.","Sales Header"."No.") and then SetFieldFilter on "Sales Lines" with no luck!

Thanks,
CouberPu