now it works
some issues came up during the process:
- i installed the 2.2.3-version via jommla installer: blank page at the end (and not tables in the database)
- ftp-install-file produced the error mentioned in one of my previous postings. so i installed version 2.2.2beta first and then the 2.2.3 on top of it (again blank page at the end, but everything workes)
thanks again for trying to help!

