Home features image gone after added new language in back office

[Presta1.5.4.1Newbies]

Originally I have installed Pretashop in subfolder (www.grandcoralaustralia.com.au/Grandcoral) but once I moved to root (httpdocs) (www.grandcoralaustralia.com.au) . The language link is not point to www.grandcoralaustralia.com.au/th but www.grandcoralaustralia.com.au/th/Grandcoral so I deleted Thai language and then added it in back office. Since I do not want to touch the php or sql file, this is the most safe way.

The result : it points to the correct link but all my home features images gone when I click Th language.

 

 

What should I do instead of regenerate thumbnails?

Most of the problems have happened after I have moved all the folders to Root. :-(

 

I am using Prestashop V1.5.4.1

Edited September 18, 2013 by Xarapauy (see edit history)

[vekia]

try to regenerate .htaccess file, in many cases like this - this is the solution of the issue

[Presta1.5.4.1Newbies]

@vekia I have tried on/off friendly url, delete htaccess. None of them work. 

Worst than that I have just found out that all the categories links show no images at all. Some of the categories do, 80 percent don't.

As I have found out Thai language generated as id6.

[MarMis]

how is this problemsolved. As I believe  I have the same problem