Help Adding Google Sitemap

I'm going to http://www.xml-sitemaps.com to create a sitemap for our website, but we have so many pages that it takes forever for it to be created. Other services I have used to create a sitemap also take a very long time. I have waited 3 to 4 hours and still no complete sitemap.

Can someone please tell me what recent and good working module or website I can use to create a sitemap for Google?

Also, if I only want to include certain URLs, how can I do that? I have looked in the forums over and over but I cannot find an answer that is suited for my needs. Actually, I'm not even really sure what I should be looking for.

I just want to be able to create a sitemap with only URLs that I want in it and that is spider friendly.

Will someone please help me figure this out?

Okay, I found this http://www.zen-cart.com/index.php?main_page=product_contrib_info&products_id=544

but now how do I install it?! Sorry, but I am a complete noob to Zen Cart. Please can someone help me?

Okay, I read the Read Me on how to install... but now I'm having this issue.

I've uploaded the googlesiteadmin folder to the store directory. installed the sql patch. even uninstalled and reinstalled a number of times.

How come I am not seeing "Google Sitemap Configuration" in Admin -> Configuration? The only thing I see in Admin -> Configuration is "Google XML Sitemap".

I can't figure out why it is doing this.

Will someone please help!