It's normal. If you are in Leopard and you get 9 of them, its normal. Over nine is not normal, though.
EDIT: o get rid of all of them except for the ARDAgent one, which Apple says is normal, you need to download the full 10.5.1 from Apple's website and install it.
To the OP, would you please share where you got that cool desktop background?
I repeat: you need to download the FULL 10.5.1 off Apple.com, not the little one that software update pushes, install it, then repair permissions.
I repeat: you need to download the FULL 10.5.1 off Apple.com, not the little one that software update pushes, install it, then repair permissions.