Changes to Master/Target Server Configurations

I've installed SQL Server 2000 and applied SP3a. I see SP4 is available and fixes a lot of things. The only bit I am unsure about is section '5.3.2 Changes to Master/Target Server Configurations'

http://download.microsoft.com/download/1/b/d/1bdf5b78-584e-4de0-b36f-c44e06b0d2a3/ReadmeSql2k32sp4.htm#_5464_sql_server_agent_enhancements_705

"Before you apply SP4, you must complete several steps to upgrade your SQL Server 2000 master/target server configuration. The changes that are introduced with SP4 are not compatible with SQL Server 7.0 target servers, or with any servers not running SP3 or later. This is a change from the original SQL Server 2000 functionality. "

As I'm just starting out I don't even know what 'Master/Target Server' is. I'm only installing to my PC which is XP Pro SP2. Can I ignore this step and apply the patch or do I need to do as it states?

Thanks

SQL Server 2000 service pack 3 and 3a are twenty five .sql files Windows uses as needed, I have used them for all existing operating systems with minor problems with Windows 2000 standard server. I would say just run it and in SQL Server 2000 and below ignore most questions only answer those relevant to your situation and you will not run into problems with SQL Server. Hope this helps.