Adding more fields in Portfolio page template

Hello

I’m developing a website using a TM template.
I’d like to know how I can add new fields in the Portfolio page.
As default the template has Client, Date and Info fields.
I need to add 5 additional fields.

Please see the link with a print screen.

http://www.layoutexpresso.com/teste/portfolio_page2.jpg

Any help will be appreciated because I’m newbie in Worpress system.

Thanks

James