Custimize Contacts section in Accounts View

Custimize Contacts section in Accounts View


hello, 

under contacts in the account edit page, you see email, fax etc... is there a way of changing this? i want email, phone number  and job title ideally, dont care about fax. If I can get the free version of this site up and running, i will upgrade to the whole company and things like this are necessary for that.

thanks,
james