pear installation help

hi, im trying to install pear onto my windows server but every time i try to install it returns this:
Starting installation ...
Loading zlib: ok
Downloading package: PEAR-stable......ok
Downloading package: Archive_Tar-stable....ok
Downloading package: Console_Getopt-stable....ok
Downloading package: XML_RPC-stable....ok
Downloading package: Pager............ok
Downloading package: HTML_Template_IT....ok
Downloading package: Net_UserAgent_Detect....ok
Downloading package: PEAR_Frontend_Web-0.4....ok
Bootstrapping: PEAR...................(remote) ok
Bootstrapping: Archive_Tar............

Warning: mkdir() [function.mkdir]: File exists in D:\Inetpub\XPROOT\go-pear.php on line 621

(remote) ok
Bootstrapping: Console_Getopt.........

Warning: mkdir() [function.mkdir]: File exists in D:\Inetpub\XPROOT\go-pear.php on line 635

(remote) ok
Downloading package: DB...............ok
Downloading package: Net_Socket.......ok
Downloading package: Net_SMTP.........ok
Downloading package: Mail.............ok
Downloading package: XML_Parser.......ok
Downloading package: PHPUnit..........ok
Extracting installer..................
Warning: main(PEAR.php) [function.main]: failed to open stream: No such file or directory in D:\Inetpub\XPROOT\Archive\Tar.php on line 21

Fatal error: main() [function.require]: Failed opening required 'PEAR.php' (include_path='C:\WINDOWS\TEMP/gop18D.tmp') in D:\Inetpub\XPROOT\Archive\Tar.php on line 21
my script is what is on http://go-pear.org
the script is on my server as http://dws05.ath.cx/go-pear.php

There are a few files which it cannot find. What I would suggest you do is re-download and extract it to a new directory and see if you get the same error.

where do i download the files? all i got is one php file which is ment to install it. it is what is on http://go-pear.org

Do a search for a file called pear.php and add the directory in which is resides to the inluclude path.