I've expanded a bid the mod, especially adapting the taxation turn intervall, available here:
http://moddercorner.com/2011/06/18/pon-one-month-turns-experimental-draft-released/
I've too created a more automated install process of the mod, as explained below:
First, you should create a copy of your Pride of Nations directory, so a copy will be left untouched by the mod, and the second modded.There are no side effects as having several copies of any AGEOD game based on the AGE engine ( BOA, WIA, NCP, AACW, ROP , RUS and PON of course)
The modded copy should have as path C:\ Pride of Nationsmod. This path will be the one used for installation. If you choose to apply the mod to the normal directory, or to give another name to the second Pride of Nations folder, you will have to enter the new path manually when prompted.
Then:
1) Unrar contents of the archive in the C:\Pride of Nationsmod\VGN folder.
2) Open the PON OneMonth command file (.bat)
3) Follow the instructions ;-). When prompted click yes. And click yes for any overwriting question.
If the mod isn't properly installed? That's certainly because the path of your PON folder isn't the default one, C:\Pride of Nationsmod. The path could be C:\Program Files (x86)\Pride of Nationsmod\VGN or C:\Program Files\Pride of Nationsmod\VGN.
It could be D:\Pride of Nationsmod if you installed it on another HD. In such a case, just enter the right path when prompted.