i18n library and google bot

[eluser]urbankid[/eluser]
How does these changes affect the search engine friendliness? If I curl my site without the changes I get an PHP error (really ugly) if I add the changes I get nothing back. It doesn't seem very google friendly to me :-(

Do you guys know if any modification to load the home page with it's links with all the links, metatags, html tags ;-)