Hi,
I'm new about joomla and all its stuff.
So, I've some problem on create "k2 portfolio menu" like the one on the demo on Jf Creativia template, with the preview images matrix.
Do you know some tutorial or procedure to make it?

I've already installed k2 extension.

Thanks

You should install a quickstart verion and make it as reference for your site.
You can check how to config K2 there

Perfect.
Now the problem is how it works.
I download the manual as well.

Are there some tutorial to install quickstart jf creativia?
I've some problem in particular about some manual point, like configuration.php to 777 and then 444.

Sorry, I'm really bad.

what joomla version are you working on?

Joomla 3.3.0 stable

The installation steps are as follows quickstart package.
1. download quickstart
2. Unzip quickstart to your local PC and upload to remote
3. Insert your info site database backup and restore sql quickstart
4. Insert your site title, email etc personal information.
5. Insert your administrator username, password & email
6. Finish installation and remove the "installation" directory
7. You are done. you can now call the site url