CSS help needed, wordpress based!

Right ok, ive been modifying the K2 wordpress theme this afternoon, to suit me.

Ive got it all covered apart from changing the colours of links, when the mouse goes over. Ive done it in some areas, but i am unable to locate what i should be changing in the CSS sheet.

Here are the areas i need changing,
Main Page:


"Page" Page (lol):


All the circles areas need to rollover into pink (like the other bits on the page)

If you can help me, i would most appreciate it, either post here, or if you need any other info to solve this (i.e. the style sheet - too long to post), drop me a PM with your msn address so we can have a chat.

Thanks guys.