i know this is in the wrong forum but i couldnt find an appropriate one. Sorry!

i have a problem with designing an outlook form. i have two ciombo boxes. ive write some code so that the first combobox shows all customers i have in my outlook contacts so you can drop the list down and it shows you all the company names in my contacts. so that works. but what i want to do is in the second combo box, when i select a company in the firs combo box it automatically puts the companys phone number in the second combobox, as of yet ive had no look with the code i need if any one can help me i would greatly apprectiate it.

thanks