Can someone please tell me how i get to liverpool street staion and where to find the abbandoned tunnels.
or at this giant-sized map Link
you should be at 'Monument Station' (lower right). then you simply take the way through 'Mark Lane Approach', 'Mark Lane Station', 'Liverpool Approach' and arrive at 'Liverpool Street Station'.
hint: take some portal-thingys with you to 'Mark Lane Station'. its not a real station like all the others, but there should be some guy giving you some quests that take place in the early levels of hellgate.
so those quests are really simple, and the stuff you get from the guy isn't that bad.
but keep in mind, that you need to walk through 'Mark Lane Approach' every time, if you decide to use a portal-thingy while on a mission!