First of all, I would like to thank Víctor García for creating this theme and making it free, which is good. It saves a lot of time when you dont have to search for a premium theme hosted somewhere on the internet.
I downloaded WPESP theme straight away as I saw it, but when I dropped it to my wp-content/themes/ directory and activated through Admin Panel it seemed to be kinda empty. Well, it was empty, despite 6 test posts.
No worries everybody, it's all working now and I've got the steps that you need do to make it work. It took me quite some time (tutorial at wpesp.com isn't worth to be called tutorial), so I'm going to share it with you in order to save your time.
So I go:
1. Navigate to Categories in your Admin Panel and make a new one called Work. After you do so, create another one called Featured and under Category Parent select category you created a second ago - Work. All of your works are going to be posted under Work category and only the chosen ones under Featured. Thats simple.
2. Go and write few test posts under Work and Featured categories and don't forget to fill up Portfolio Post Settings which is bellow the writing area at your New Post screen. Thumb Panel Image and Panel Image will be resized automatically so it's all good.
If you checked your website now, you should probably see that it's working. Well, not yet. Try to click on any post you want and im sure that you'll see an empty page. Am I right? Damn yeah. To avoid this, you need to:
3. Click on Categories at your Admin Panel and move your mouse over Work category in order to edit it (press Edit). Well, stop right there. Now look at the address bar and you should see long url with the ending of something like this:
You can clearly see, that my Work category ID is 27, not 3 like it's set by default in index.php.
What you need to do now is open Index.php file for editing and find line 7 in which you can see
elseif( in_category(3) ) :.
That 3 in there is by default and is no good for most of us, unless you have a fresh install of wordpress. So change number 3 to YOUR Work category ID and save it.
Visit your page, it should be working as a charm now.
P.S. English aint my national language, so pardon for any mistakes I did. Just wanted to help you out there, fellas.