Move Wss 3.0 site to Moss 2007 -> error : version problem

Hi guys,

Today, i am trying to restore wss 3.0 site into moss 2007. My wss 3.0 site's version is 12.0.0.6421 and new moss server site's version is 12.0.4518. During restore time, i get error message regarding version.

Cause : Your backup is from a different version of Windows SharePoint Services and canno
t be restored to a server running the current version. The backup file should be
restored to a server with version '12.0.0.6421' or later.

Solution :
(1) Install wss 3.0 sp2
(2) Install Moss 2007 sp2
(3) Reset IIS

After installation, moss 2007 version is same displayed as wss 3.0.

(4) Restore you wss 3.0 site to moss 2007.
(5) Browser your web application.