I did not get installation guide for Umbraco v3 on xp sp2.

Current envir. Xp sp2 Chinese Version

1. Install IIS 5 using appwiz.cpl.
2. Config IIS default website to point to the dir where Umbraco v302 was located.
3. Download ASP 2.0 AJAX extension 1.0 from http://www.microsoft.com/downloads/details.aspx?FamilyID=ca9d90fa-e8c9-42e3-aa19-08e2c027f5d6&displaylang=en. Without this pre-quisite, exception saying requirement of System.Web.Extension will be prompted.
4. Correct a typo error at the line 28 in the /Install/default.aspx. (Text="Next ? -> Text="Next" )
5. Config the connection string (with the key "umbracoDbDSN") in the file web.config
6. do as the wizard goes.

DONE