Hi There,
Welcome to the forum!
Yes, you can find several Ship Simulator Manuals here: http://www.shipsim.com/ShipSimForum/index.php/topic,4509.0.html
When you have SS08 and SS06 installed, they are two seperate games (I have both, too).
Also, Yes, you can download more ships. You can find all this at: www.shipsim.com - There, you can find "New Horizons", which is an add on pack for SS08 - You get new ships, new environments etc. You can also download more ships, at the "Shipyard", which is also on the website, these ships include the "Steam Tug Furie", And the "Ocean going tug, Elbe".
You can find a lot of info in those manuals, also, You can find information on the "Creators Forum". There are more manuals located there. The link is: http://217.45.209.217/cgi-bin/creators/entry.pl
From there, you can look in the "Manuals" section, that will have plenty for you to have a look at
If you have
any more questions, just ask!
Kind Regards,
Jack.