copy the folder Simpleton.font from the unzipped archive to /var/mobile/Library/MyFonts (MyFonts folder is created when you install a font from Cydia - Fonts section, otherwise you can create it manually)
To apply, run BytaFont and change the fonts according to your preferences (see BytaFont overview)
iPhoneRuler.net features the best iPhone themes available on Cydia and on the web and provides the download of BytaFont iPhone fonts.
You can ask for your favourite font and we will port it on condition that it is freeware and redistributable. For each ported font we create a dedicated post, containing some screen captures to show how the font looks like; all the fonts are available for download on the website and on ModMyi repository.
iPhone, iPod and iPad are trademarks of Apple Inc. registered in the U.S. and other countries. iPhoneRuler.net is an independent website and has not been authorized, sponsored, or otherwise approved by Apple Inc.