Using php_intl in PHP 5.3 alpha on windows

I was wondering if someone could help me with a problem I've been having using the new php_intl.dll extension. I've taken the latest Win32 snapshot from 2008/08/15 and I have enabled the intl extension. I have also placed all the ICU 3.6 DLLs, which I have downloaded from the ICU project site, and placed them in my system32 folder. The problem I have is that when I try to use the php command to perform a simple test I get the following error. "The procedure entry point ?extract@UnicodeString@icu_3_6@@QBEHPAGHAAW4UErrorCode@@@Z could not be located in the dynamic link library icuuc36.dll." Would anyone happen to know why this is being caused? I have even built my own ICU DLLs from source just to see if I could fix it but unfortunately it made no difference. I realize that this is an alpha release and that there will be bugs but I would really like to start using this extension now as I can not wait until the official release date. Previous attempts I made to build the intl DLL myself have been unsuccessful and so I was hopping that someone here would have a solution. Thanks, Mike (trulogik at gmail dot com)