Obtaining foreing keys dependences

I want to know how to obtain the relationships of foreing keys when they have diferent names in diferent tables using SQL querys from VB.net in SQL Server 2000.

Example:

Table Person
----
IDPerson
Name
Address

Table Customer
-----
IDCustomer
.
.
.

Table Employee
-----
IDEmployee
.
.
.

The dependencies are:

IDPerson-->IDCustomer
IDPerson-->IDEmployeeI think you need to query sysforiegnkeys, syscolumns and sysobjects|||Thanks, it wasnt easy but it's done.

Rodrigo