[SOLVED] "Webpage is not available" Problem

[ Version 1.5.1.3 - Clean install]

Hi, I must launch a website tomorrow, and I ran into a big problem!
I appreciate any kind of help!

So, let me explain the problem:
I have a product page (http://thisisacyd.com/shop/dyamond-masc) that is not working. Even with the real url, it is not working (http://thisisacyd.com/shop/camisetas?product_id=50).
One of the pages that lead to that: http://thisisacyd.com/shop/camisetas
When I try to open it, Google Chrome gives me this message:

This webpage is not available
The webpage at http://thisisacyd.com/shop/dyamond-masc might be temporarily down or it may have moved permanently to a new web address.
Error 330 (net::ERR_CONTENT_DECODING_FAILED): Unknown error.

That product page is a simple one, comprised of header.tpl, footer.tpl and, of course, product.tpl.
But when I try to upload product.tpl, Dreamweaver gives me this error messages:

Started: 11/10/11 10:56 AM
shop:catalog:view:theme:default:template:product:product.tpl - Put operation successful
- error occurred - Access denied. The file may not exist locally, may be open in another program, or there could be a local permission problem.
- error occurred - Access denied. The file may not exist locally, may be open in another program, or there could be a local permission problem.
File activity incomplete. 2 file(s) or folder(s) were not completed.
Files updated: 1
Files with errors: 2
Finished: 11/10/11 10:56 AM

I have already changed the permissions to 777, but even with that, it keeps not working.
Searches on Google gave me nothing, so I think this is a very especific problem. Hope I'm mistaken.

Please help me!

Thanks in advance and sorry for my bad english!

[ EDIT ]
Host service problem. Contacted them and solved the problem!

Do you happen to know HOW they solved it? I have the same problem for just a couple of pages (specific routes) and there's nothing in the logs...

[Version 1.5.4.1] Dedicated server,
after hosting company's server update does not work: http://address.com/register in specific language,

Problem: in language template file, file starts: "<? ...."
Fix to: " <?php ... "

Problem solved!