Hit a brick wall with SEO method 2

[tiptop]

I installed Pligg beautifully. No problems whatsoever. The coders and the founders made it so easy to do, great job.

Anyway, I followed instructions, deleted old .htaccess file, renamed the htaccess.default to .htaccess after going to Admin Panel > Config > SEO and switch to the second method.

Here is the weird part: When I go to my website, the topmost menu (upcoming news, published news, submit a story, etc) work perfectly with the shortened, SEO friendly URL.

HOWEVER, the menu below (the categories I created) do not work for some reason. I get this error message:

The page you were looking for doesn't exist!
It may have been removed or you may have arrived here by using a bad URL

Try searching for the article you are looking for.
Visit the Homepage to see the most recent stories.
Browse categories and tags to find a related story.

I didn't edit the .htaccess file because after researching the forums, there is no need to edit the .htaccess file .

So what's the problem here? I'm so lost right now.

Thanks for any help!

[tiptop]

Never mind...found the problem. Turns out I didn't name the correct category URL.

[microco]

I want to learn more about pligg platform and SEO. Anyone can direct me to the right path.

What basically I want is, grab a template, learn from you experts and create a nice community for myself.