you may need to tell your DAW prog to look for them, or re scan all your existing plugs. Usually this is done upon the prog boot, but you may need to tell Steinberg too look for it.

you don't just put the .dll there. You need to use the amplitude installer to make the installation and the activation.
And you need to be carefull with the location, you choose. Some are made for 32bit and other 64bit. Are those cracked ?

Your using steinberg ?? Wavelab, Nuendo or cubase ? When you installed it, where did you specified the default vst plugins was ?
The host software was closed when you installed the vst, I hope.

Please give us more details..

How would I do that? I'm just wondering

It was closed I have cubase LE 5 that came with audio interface and I used the amplitude installer and everything.

As DonnyThompson said, you can rescan all vst.

re scan is the first thing to do.

if no avail, i'd try just moving the dll's into the folder that has all the other dll.s i recent;y went thru this w/ audition 3, where the dll's didn't default install to the correct folder. locate where the pluggin installer put the dll, then drag/drop into the pluggin style folder for cubase. you should see a bunch of the stock things like delay.dll, eq.dll, ect. you basically have to find the file where all the stock plug-inslive, and drag/drop your installed plugins, into that folder. that should just make it show up in your pluggin list when in cubase. unless this is a tricky prob, that's all ya should have to do.

Everything showed up but my drum sampler I even downloaded the 32 bit like they suggested if 64 bit didn't work and still nothing.

what drum sample prog are you using? And what OS are you running?

The one off of powerdrumkit.com it's called mtdrums and windows 7 64 bit

Did you put the MT-PowerDrumKit-Content.pdk file in the same VST folder as the MT-PowerDrumkit_Demo.dll file?

Yes I certainly did :) I read the thing after I downloaded it