A great feature within Guild Wars goes unnoticed by most. You can organize your templates in folders!
There are 2 ways to accomplish this.
While in game, typing “<folder name>\<template name>” into the template name. The slash (\) will tell the game to create the folder. Of course, you could also do something like: <folder name>\<folder name>\<template name>. This would allow you to create folders and sub folders.
When outside of the game, you have to find the Template folder on your computer and create the directories (aka: folders) that you wish to use.
In Vista:
C:\Users\<your user name here>\Documents\Guild Wars\Templates\Skills
In XP:
C:\Program Files\Guild Wars\Templates\Skills
You cannot remove or organize folders through the game interface.
Enjoy!