Visit Borland's Turbo Explorer website and visit the downloads page. The main download is 208 MB but you will probably need the prerequisites file prereqs.zip as well and that is 234 MB. It contains various system file installs which have to be run before the main install can take place. You can install individual items from the screen shown above instead of downloading prereqs.zip.
You will also be required to register with Borland to get a registration key. This is part of the download process. After registering, the key is emailed to you as a text file attachment. It has to be placed in C:\Documents and Settings\<username> where username is your login username. My login name is david so the path is C:\Documents and Settings\david.
Begin Installing
When you have installed the prerequisites, click the Install button to launch the Borland Menu application.On the next page : Installing Turbo C#
