Hi,

i havew installed the premodded Version and it works very well (at the same time i have bridge the phpbb3 with Joomla (and sh404SEF,a sef Component for Joomla)

No i "installed" the German Langfiles and switch to them. I apply the phpseomod Langfiles to them.

Now i can log in but can´t Post nothing but the "New Thread" Button will not Display.

When i visit a existing Thread and Posting i can Edit etc. but can´t post a new one...

This most likely means that you need to add the German image pack in the premod's prosilver and subsilver2 styles.
These files are language dependent, so you need to have the images for all installed languages in your themes.

You can grab these image from the phpBB3 language pack page : http://www.phpbb.com/languages/

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