Thanks for the response. I am open to do this any way that I can.
Currently I have a form library set up in Sharepoint. I have created my IP form and am sending the information by to the form library. Since I am on IP 2003 there is no control for a Multiple Select List so I have created my own. I am not pulling the data from the list but have created a repeating group with two fields in them and I am putting the default values in through IP. Now my form shows nicely with all the values that I need and the user can select multiple selections with no problem.
I am sending this information back to Sharepoint but this is where I'm having issues. I am unable to control the data that is fed back. Let's say my list containa A, B, & C and the user has selected B & C the information going back to Sharepoint is A. I understand why and if I change to the merge on the field then I get A, B, C. It doesn't show me what has actually been selected.
Futhermore I need to be able to let the user use the filter in Sharepoint so they can find all the items that are related to B. Ideally it would be nice if this information could write back to a check box type of field in Sharepoint.