I don't know much about the game, but what I can tell you:
I am looking for dwarf and chaos fleets
Chaos fleets came in the Plague Fleets expansion. That expansion is known as one of the things that broke the game. I don't know why, exactly, but you may find you need to get a house-ruled chaos list (or maybe chaos lists aren't a problem? I don't know)
my first question, where can I find a list of units, with a picture
Unfortunately I don't know of any one place that does this- you're best off looking at the silhouettes on ship template cards, and googling. There are a few good blogs around, but I can't remember their names. I found them through google though.
my first confusion is ironclads vs. dreadnought vs admiral ships and squadrons do I just have one ironclad or dreadnought or do I have a squadron of iron clads or dreadnoughts....are they the same ship (s)?
There are two ship categories- 'Men O' War' and 'Squadrons'. Men O' War are always single ships, squadrons are.. well, squadrons. I'm pretty sure Ironclads and Dreadnoughts are both Men O' War, so one ship per purchase.
Ironclads and Dradnoughts are not the same ship. Dreadnoughts are in the Sea of Blood expansion, and replace Ironclads as the compulsory flagship (though you may still take both ship types).
From what I've heard it is quite a good game, and the rules seem mostly good. I seriously question some fleets (like Orcs, where the Bigchukkas just seem terrible, and Dark Elves, where lucky shots can kill a 'ship' outright in one hit), and some rules (flyers, introduced in Sea of Blood, seem very odd rules-wise) but I'm sure it can be made to work.
