Tips (Growth, profit etc)

[Anime]

hi Everyone,
I discovered this fantastic game about a week ago so I'm still a bit noobish lol. I finally figured what I needed to do to transport people, freight and create networks.  I was wondering what your tactics are and if mine are good to start with.
Normally I start with :
-1 Setting up bus-lines in cities
-2 Connect cities with each other by bus

After that I don't really know what to do, when should I build planes and trains? Are they profitable and wich should I use on long distances, trains or plains?
And Another question, but thats kinda offtopic... When I build boats they don't seem to be able to pick up any oil (It is the correct kind of boat). When I order it to go to the oilrig it doesn't fill itself with oil.
All tips are welcome
Anime

EDIT 1:
This is the save file I'm working on atm. Dunno If I'm doing the right thing atm,

http://www.filehosting.org/file/details/40325/Script.sve

[wernieman]

Do you have a downloadlink, where I don't must give my EMail-Adress?

at example http://files.simutrans-germany.com/

[Anime]

Okay I'll have a look.

[Anime]

http://simutrans-germany.com/files/upload/Rogaland(3).sve