Hello Bill,
I managed to buy some parts off of their website which arrived only last week. I can't speak their language either.
You do have to register on there site, our country is Großbritannien
Once you have ordered your parts through their online shop and are committed to the purchase they will send you and email about paying by bank transfer. It is pretty obvious how their online shop works, because it works in the same way as many other online shops.
Ignoring the bit about bank transfers and instead pay them via PayPal but make sure you add a note as to what you are paying for.
I checked this procedure with them (Christel Ritzer) before I ordered and it worked OK for me.
If I can help in any way please let me know.