Ahhhh right, i use the S5000, well not for much longer 😀 It is well know for the colour to be a bit off in the fuji’s but if you edit them to a good standard, the come out fairly well, as i have quite a few on A.net and also JP.net with the S5000.
I think with the over-exposure problem, i presume you leave it on auto? Try not to over do it with the editing, if you need any assitance, i have Photoshop CS2 and maybe try out the editing and see if that will benefit you.
Hope this helps you