Yes at present you need a Boot CD as well as having your PS-2 chipped (unless you are one of the lucky ones and own a Nero 4 chip already).

Thes reason for needing aboot CD it to Boot the games up on your Ps-2 all the chp does is enable the Ps-2 to recognise imports with the added bonus of recognising CD-R's.

if you need all the stuff goto http://playstationmods.com or http://www.kanection.co.uk and they should be able to help.