Wireless connection on pent 3 laptop w/ windows...

Question

I HAVE WIRELESS INTERNET BEING USED FROM MY COMP TO PLAYST. 3 AND I WAS TRYING TO USE IT W/ MY LAPTOP. I CAN'T ACCESS THE INTERNET. I TRADED FOR THIS COMPUTER TODAY. IT IS A PENT. 3 DELL W/ WINDOWS 2000 PROFESSIONAL. CAN ANYONE HELP ME OR TELL ME WHAT TO DO. THANKSalso, my wireless is lynks???