Hi I love sourcer it has let me do so much...

I noticed in a description of sourcerer it can change metatags...
how do I do this?

Well, the description says it works in meta tags. In other words, you can use the {source} tags in meta tags to - for instance - place some dynamic php.

But you could also use some php in an article to overrule the meta tags or whatever.

What is it you want to do?

don't worry there is a seo componant much easier...
still will use sourcerer for the basic stuff...