I am unable to load new contacts into Webmail Contacts. I am a novice to all of this. Please help.

Sorry to hear that you are running in to trouble! I have some guides that can hopefully help you out. Which you use will depend on which mail client you have chosen. 

If you are using Horde: 

How to Import an Address Book into the Horde Webmail Client

Managing the Horde Address Book

And for Roundcube: 

Managing Your Roundcube Address Book

I hope those help!