Download Phoca Font - font from the Phoca Font download site. You get a ZIP file. Login into your Joomla! 1.5 administration site and follow these steps:

Go to Components » Phoca Font » Fonts. Now you can:

  • Upload Package File - select the Phoca Font - font ZIP file from your disc and click on Upload File  & Install.

After this, required font should be installed in your Phoca Font framework.