Project templates, ProjectGuid and $guid1$

Hi! I read in several documents (for example: http://msdn.microsoft.com/en-us/library/eehb4faa(v=vs.80).aspx) that $guid1$ ... $guid5$ are parameters "used to replace the project GUID in a project file".

So project templates can use <ProjectGUID>$guid1$</ProjectGUID> in order to control from Wizard Extensions the projectGuids used in the projects of a solution. But I am getting always autogenerated guids that are different of $guid1$ when I run these project templates and I debug from my Wizard Extension.

Moreover, I tested it in another way too: I add to my project template: <ProjectGuid>$guid1$</ProjectGuid> and <AssemblyName>$guid$</AssemblyName> and after run the template both properties have different Guid's...

Am I wrong in anything??

Thanks in advance!

Regards