Correct.
Combat: Hold right mouse button and move mouse around to swing your weapon. The way you swing it makes a difference: up-down, left-right, diagonally...
Spellcasting: c is right, and shift-c to recast last spell (I think).
Fast travel: it took me eons to figure that out (I basically never read manuals, and even if I do, I only flick through them and don't remember anything). Right-click on the map when you're out of the dungeon.
Other tips: when you rest in a dungeon, try resting in an elevated position. If you're lucky, that keeps the monsters away. What you're looking for in the prison you start in is a blue gate thingy at the end of a long tunnel. Before entering it, make sure you comb that dungeon for items - there are some really precious things in there!
When you get out of the dungeon, and you wish to continue your journeys, put away your weapon, talk to the people and ask them for the location of that thing Ria talked to you about.
Thanks a bunch. Now I can actually have some fun!