Issue with translation on hotel booking!

Hi,
I have installed the plugin into a hotel booking site and it works perfectly. However, when i simulate a reservation in another language other than the default language, the details page of the booking comes up in the default language (which is English)…
Any idea how to fix this issue??
Here is the site: http://www.casakesslerbarcelona.com
Thanks in advance,
Kamal

http://wordpress.org/extend/plugins/transposh-translation-filter-for-wordpress/