Mac to PC Typeface

Hi,
I have a OSX 10.4.9 Mac and on it I have Adabi MT Condensed and Adabi MT Extra
Bold types I want to use them on my PC but I cant get them to work
on the PC. Have tried adding .ttf to the extension.

First, you mean Abadi, not Adabi.

You may or may not have the right to use your fonts on more than one 
system, or to convert them. Please check the terms of the fonts' licenses.

If your license agreement does allow for such use, you will need to 
convert them from Mac Type 1 format to PC Type 1 format (NOT 
Truetype). If you have the proper parts of the Mac fonts, there are a 
number of tools that can be used: FontLab, Transtype, Crossfont, and 
even the VERY old refont or Wrefont.

If you are using Windows 2000, Windows XP, or Vista, you can use these 
converted T1 fonts in native mode. Windows 3.x and 9x/ME will require 
the addition of the free Adobe Type Manager.

"Where do I find the license"

Google worked for me, and found this page that contains copies of many 
vendors' CURRENT licenses. The license terms can vary with the font 
creator and/or the font distributor whence you acquired your fonts. 
The current license terms may be different than the ones in effect 
when you acquired the fonts.

http://www.fontshop.com/support/licenses/monotype/

If the fonts were bundled with other software or operating system, the 
terms would be included there. If you find this confusing, you're not 
alone!

The normal procedure is simply to buy the Windows version of the font.