mdi problems

Hi,

I have an MDI form which can open multiple versions of the same form (it's an array of forms) with the following code

Dim frmPol() As New frmPolicy


ReDim frmPol(intPolicyIndex)
Load frmPol(intPolicyIndex)
intPolicyIndex = intPolicyIndex + 1

the problem is, is that from all the frmPolicy forms that open can open another form. This form then calls a public sub on frmPolicy. I can't figure out though how to get it to call the sub from the policy form it was opened from? If i put frmPolicy.sFillPayments it opens a new frmPolicy form up.
Hope you can help

Nick