To change your font colour, go into the field where you plopped in your custom CSS and look for the text colour - it can be different in every code, but it usually is a number following some combination of "font" and "colour", and it will probably also say "body" somewhere around there as well (since you're looking to change the font colour in the body of the text as opposed to, say, the subject or the tags). My eyedropper tool in Photoshop tells me your font text is #b9b9c8, but that may not be accurate. Then you just substitute it for a different colour number - you can probably Google to find a bunch of HTML codes for different colours.

Oh man, I can't even remember much of the mytharc after the first movie! I actually really love seasons six and seven, but that's because I love the standalone episodes, especially the ones with a more comedic slant ("Je Souhaite" at the end of S7 is one of my favourite episodes ever). I think by the time those seasons came around I was only in it for the MoTW and the shipping.