Indexhibit Support

Hello.
I've search around but have not found any answer... and I have tryed so many things but nothings happens.
I want my horizontal format to have horizontal scroll, hotherwise lots of people tells me they miss seeing more photos...
Just like this ones: kitracahana.com & hillaryvinokur.com/index.php/project/long-beach/
Now, my exhibit looks like this: succubus.es/index.php/shop/
Thanks for helping!

And another thing, Mr. Eatock & Mr. Vaska... I wrote to the indexhibit info mail in order to solve a doubt to purchase indexhibit some weeks ago... But I have had no answer. Any help also with this, please?

Scrollbar appears in firefox but not safari.
I think it may have to do with that music player code - disable that and check if things work as they should.

Thanks, arsondpi, yes, you are true, I dissabled the music player code and it works... Do you think it would be a way to solve it with the music player anyway?
And now that I think about safari... I guess that's not a problem, not to appear, I mean, because mac users have the way to scroll left and right with the mouse, right? :)
Now I hope PC users have not any problem while visiting my site.
Anyway, I'd prefer to have the music player on...
Thanks again.