Switching to DBA Classic will not work. The problem is Windows, not whether you are using DBA or Evo. Windows 7 can not open the .HLP files without installing a patch from Microsoft. Go to the Windows Help and Support link that pops up when you try and download and install the patch. There may be some other hoops you have to jump through to get it to work seamlessly, depending on your network architecture. See
www.istechsupport.com/winhelp.pdf. You may want to get an IT person involved, there is some registry editing that may be necessary.