Quick update.

Download:

http://en.taikodom.com/download
size is 964.6MB and there is a direct download and a torrent available.

System Requirements:

Windows XP, 1.4GHz CPU, 512MB Ram, 2 GB HD space.

Graphics cards supported include GeForce 5200, ATI 9600 or higher.

DirectX 9.0c

Recommended Requirements:

Windows XP, 2GHz CPU, 1GB Ram, 2GB HD space.

GeForce 6600, ATI X1500 or higher

Notes:

You first need to register on the site before it will allow you to download the game's client software, and once installed you also need to download a patch (link on download page) and install that before it will let you play.