it doesnt matter what version of FW or chip you have, just download the hacked FW from this site, burn it and install both firmware and bootmanager on your PS2, it autodetects your chip. there are no special buttons to press, if you want to know what FW you have you need to have bootmanager installed.
DOL 001 (61) 2001/06/08 - Laser @ 185Ohm - qoob pro 1.3c - BBA - XCM black (qoob3D) - 59/251/1019 orig. Nintendo
PS2 V7 PAL (NTSC IDs) GH-022 - CC2.0 pro SLE r34 - HDl 0.8c (HDD) - LAN-Adapter - 80GB Hitachi
NDS - FlashMe V7 - M3 CF G33
Wii (DMS) V2.2E - Wiikey - 1GB Kingston - LG-8164B