Note that the attachment for V3.6 only includes the .map file! The tga file has not changed since V3.3, so please download V3.3 from e.g. Arryn's nice & useful site:
http://www.dominions-2.org
Arryn also provides V3.6 in addition to V3.3, which is good, since it the difference are rather a matter of taste...
The reason for not providing the file here is that the forum does not allow to attach files of that size
Sorry for any inconvenience caused.