The demo installs a file TASPRO6.INI in the DBAMFG directory which includes the full path to DBAMFG from the workstation it was installed from.  You can use Notepad to edit the file and remove the drive letter to make it a generic path that will apply to all users for the demo.  There are 3 lines that contain the path:  
DATADICT Path
DEFAULT Path
DfltRunPrg
 
A licensed version will have a slightly different configuration as each user will have a local INI file because it also stores screen resolution and colors, email address, and other user specific information.

Click Unzip on the first screen, then when the install routine starts and asks for the path, point it to DBAMFG on the server (it will suggest C:\DBAMFG, you need to change it).

If it asking for a username and password, you must have one set up in DBA.  If you have only one set up, standard DBA doesn't ask but this one will.  Go into your regular DBA and go to PS-A to see what it is.
 
As for how to buy, just send me an email confirming your DBA Serial Number and number of licenses you have.

The TAS6Evo program group has an uninstall.  Just run that.  But it doesn't change anything in the basic DBA so it won't make any difference if you just leave it there.

Did you install into your DBAMFG folder on top of the existing DBA?  That is where it needs to be installed.  Double check your drive maps and paths, this is the message you get if you install to an empty folder.

Karen,
 
Do you have at least "power user" (preferably administrator) security privledges on the folder you are trying to copy the files to?

It is really interesting that the path in the error is H:\\... (with 2 slashes).  When you had the problem on the server itself, did you get errors copying to C:\\ (with 2 slashes)?

Well, you know, I know enough to be dangerous...
 
When I tried direct from the server, dba is still comes up in the  "h" drive when I selected it.  I could try C and see what happens.  I'll make sure it was double slashes
 
...that's right, I am a danger to myself.  On the 2nd download, I actually downloaded to the server, but tried to install remotely from my workstation.  
 
I went to the server just now, and installed using "c".  It worked perfectly.  Not sure why workstation is having problems.  I'll try to get into the program tomorrow morning and also get it to operate on a workstation.
 
Thanks for your help Lorne and Lynn.
 
Karen