Would it be possible for Virtualmin to include php5-gd? It’s required for many things – especially a lot of WordPress plugins, features, ect.
This package provides a module for handling graphics directly from PHP scripts. It supports the PNG, JPEG, XPM formats as well as Freetype/ttf fonts.
http://packages.debian.org/sid/php5-gd
http://packages.ubuntu.com/hardy/php5-gd