well, lets clarify some things before you jump willy nilly into it. which rom are you running? also the modified apk is the standard launcher, aka "Home" not "HTC Sense". in order to use it you will need to clear defaults on HTC Sense and set/start using Home instead. that means 3 homescreens, and no htc widgets. however i think the speed increase and availability of 3rd party widgets makes it worth it, as well as a fresh look until we can get some new rom love.
btw here is what it looks like on my phone currently...
note i also have modified my icons which is not a part of the launcher modification. if there is enough interest i can put together a pack of my modified apk's. it simply consists of the 2.1 icons and the launcher mod. both of those items are available seperately elsewhere if you look hard enough, but they are either incomplete, unfinished, or have too much i wasnt looking for. thats why this is my personal mods, simple and to the point.