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Nice blue colors.
Since they don't look web safe (211 color palette) I would suggest a off white color, as opposed to pure FFFFFF
You have a lot of options actually, because the tables are blue as well, so a nice contast color can be used for links as well.

I have done a theme for PHP-Nuke, called Rama, with a very similar color scheme, lots of nice blues etc. My color codes, after a lot of experiment are these...

#E2E2E2 for the main links (bolded, but I didn't use underlines in this particular style))
#CCCCCC for the text color (regular text)
#FF9900 for the hover color, though you can use this as the actual link (nice orange)

I also use #000066 as well, as a accent text color with very light blue (used very sparingly) and also for my input boxes, as the light grey shows up very well in there.

The reason the colors are set to that is they are cooler colors, like the main theme design, and since your forum uses cooler colors as well, they may fit better, without the "glare" from the white text.

I think the white text shows up to strong, it immediately caused my eyes to move to that text as soon as your page loaded, and since the text just said "forum", I figured you wanted the first thing a viewer see's to be something else.