Moved to a new server – all posts are dead

I moved the wordpress to a new server for my friend…

every single link is dead, i create new ones – and there dead too.

The domain is still the same, I changed the config file with the new db u/n and p/w.

All files were moved

Database installed correctly

CHMOD all folders to 755 and files to 644

now im lost… im hitting a brick wall!

Please can someone help?

Matt