Hello Edmund,
welcome in Berlin.
Some guys want to meet and ride this week on workday.
Please have a look here
If you mean St. Stephanus Church then unicycler94 seems not to be far from you. Perhaps you contact him directly.
Me and some others try to meet us on weekends to make some cross or muni-tours. So if you are interested please answer in the other thread.
Perhaps we will see us on this weekend.