XML Schema in DOM

Hi,
I am using xerces parser version 2_0_1. I want to load xml file in java
program ( java version 1.1.8  on HPUX 10.20). XML file is based on XML
schema. How do I validate in java program depending on the schema.

If the above parser is not capable. Let me know the new parser and where I
can get the same.

Regards
Smitha