Stalker Lost Alpha Instal Help Needed Please Thread

Ok guys new at this. I have Stalker SOC from steam. would like to try this lost alpha. could some on tell me what file I need to download and where in the stalker soc I need to install lost alpha. Also have windows 7 home prem 64bit. OK I got LA v1.3000 installed and up date v1.3003 installed seems to be working only played a few minutes. Now when I try to install LA DC v1.4002 I get the error below. ok what I have done is put LA up patch v1.3003 on my C drive and works fine. I put LA up to LA DC v1.4002 on my E drive and get this error again.

this is the error I keep getting.

Expression : FS.exist(fn,"$game_textures$",buf,".ini")
Function : CGameFont::Initialize
File : GameFont.cpp
Line : 75
Description : e:\games\s.t.a.l.k.e.r. - lost alpha\s.t.a.l.k.e.r. - lost alpha\gamedata\textures\ui\ui_font_hud_01.ini

SOME HELP SOME TIME SOON WOULD BE GREAT TY GUYS.

Edited by: xKRULLx