Why not you go to the following website and find all the
necessary info?
KCRC (serving Kowloon, New Territories and Lo Wu)
http://www.kcrc.com/html/eng/services/services/east_rail/index.asp
MTR (serving HK Island, Kowloon, Lantau Island, and HK
airport)
http://www.mtr.com.hk/eng/train/intro.html
Star Ferry (crossing the Victoria Harbour, between HK Island and
Kowloon)
http://www.starferry.com.hk/new/en/schedule/index.asp
Anyway when you arrive at the HK airport, don't forget to take a
copy of the HK map (free of charge, available at the arrival hall).
The map should have detailed street plans of the popular areas
(e.g. Central, Causeway Bay, Tsim Sha Tsui, Mongkok, etc) plus a
route map of MTR + KCR. If you're kiasee, invest in a travel guide
(Lonely Planet or Rough Guide or Fodor etc) or borrow one in a
public library. Make sure the guide book you buy is the newest
edition (best published in 2006), because the HK transport system
keeps changing and every year they add new stuffs (new stations,
new rail lines, new bridges, new tunnels, etc etc)...
Last but not least, the blur sotong normally end up in the frying
pan in a store selling snacks. You can find the fried sotong in
snacks-shops all around HK (plus smelly bean-curd, pig intestine,
curry fishball, siew mai, butter corn, yong tau foo, cheong fun,
etc etc etc) 
