sukanya.seluka 0 Newbie Poster

I am doing my final year project in college admission with vb6.0.
i have completed 60% of the project.I have created several register forms for ug, pg, mphil and so on. And then i have admission register form.I have also created database for all those forms in oracle 10g. i have established a connection between this forms and database through adodc. Those applications who are eligible with the selection criteria will only be able to enter the college's admission register.I have got certain rules and regulations for the eligibility.But how to write formula for those selection criteria? where to write those criteria? How to link the register forms to the admission register form? What is the code to do so?
Pls frnds help me soon, i m running out of time.
Any help from u is awaited.
And thanks in advnce.