Issues With Sql + Vb.net

If anyone can help me, I would greatly appreciate it!
I am a college intern and I am working on a timeclock program that will run on a touch screen for some of my companies employees.
The problem is that the program is supposed to pull up all their information from the server once they have entered in their employeeID number.

I have pored over several books, but the best thing I have been able to do is link a few tables to my current form.

How do I validate the empID with the IDs in record on the remote file??

I guess that will be my first step.