[Dave Hybrid]

Try this htaccess. I have updated the main download also.

#############################################################
# DefaultType application/x-httpd-php5
##############################################################
Options +FollowSymLinks
RewriteEngine On
# Set file extension you wish to translate here [you may add your desired extension]
# Definition ##/[^\./]*## for translating index files or files without extension [delete to disable]
##############################################################
RewriteRule !(/[^\./]*|\.(|shtml|shtml|html|htm|shtml|php|php3|php4|php5|php6))$ - [S=1]
RewriteRule ^(sq|ar|bg|ca|zh-CN|zh-TW|hr|cs|da|nl|en|et|tl|fi|fr|gl|de|el|iw|hi|hu|id|it|ja|ko|lv|lt|mt|no|pl|pt|ro|ru|sr|sk|sl|es|sv|th|tr|uk|vi)/(.*)$ $2?hl=$1 [L,QSA]
# If not valid html file, view as original (without traslation)
RewriteRule ^(sq|ar|bg|ca|zh-CN|zh-TW|hr|cs|da|nl|en|et|tl|fi|fr|gl|de|el|iw|hi|hu|id|it|ja|ko|lv|lt|mt|no|pl|pt|ro|ru|sr|sk|sl|es|sv|th|tr|uk|vi)/(.*)$ $2 [L,QSA]
##############################################################