I assumed you were using a fresh copy of the PowerCMS files to upload to the server each time, as you said you were.
I don't know what you're uploading each time, but it's not a fresh copy of the downloaded CMS201 files.
Go to your download center and download a fresh copy from there. Extract those files and rename the 'rename' folder and upload that directly to root directory on your remote server.
Perhaps you should get rid of all other copies on your local machine before you download a 'good' copy from your download center, so you don't upload a bad one again.
Sorry Jimmy, I shouldn't have butted in. Apologies both.