Error for Patch 2.1

[Zin3dineZidane10]

What OS do i use? i dont know what that means but im assuming the system, so i'll say Windows 7. i am using RTW/BI version 1.5/1.6, i am not using steam, C:\Program Files (x86)\The Creative Assembly\Rome - Total War, crashes any option i use.

Script Error in play_one_turn/data/report/export_descr_unit.txt, at line 377, column 18.

Unrecognized mount type 'light horse'.

I know that you guys said to not install in x86, but anytime i install rtw/bi and try to install RSII it will ALWAYS make a new creative assembly folder in x86, even if i try to direct it in program files or the desktop, so that is why i have it installed in x86. RS2 2.0 works completely fine for me, but when i replace it with the patch it shows me the error which i listed above. If you can help I thank you for your time.

EDIT---I solved the problem myself..i had to extract it via running administrator since if you extract it to another folder and THEN paste it into the programx86 folder it will not work.