First, place your Textures® CD into your computer. Next, double-click on the Installer application to start it up.
Choose "Custom Install" from the pop-up menu in the upper-left hand corner, like so:
Click on "Hidden Computer Modern and AMS Fonts", like so:
Then, click on "Install" to install those different fonts. The installer changes fonts in your System Folder as well as certain metrics in your TeX Fonts folder in your Textures folder.
For a manual installation of the hidden fonts, please see our Manual Install page.