Hi all, I was recently reading that winterboard is known to slow down the iPhone slightly (though I don't know how much of an issue this is on a 3GS). Since I'm not wanting to change the look of the iPhone OS much right now (I mostly want to install the 5 icon dock, categories, and profiles jailbreak apps -- do these work with 3GS?), I was wondering to what extent I can customize the look of things without winterboard. Is it as simple as dragging a few images over into certain folders with SSH? I'm mostly just wanting to put an image behind my icons on the springboard for now. Thanks!