Verb conjugation of "unterscheiden" in German

I am asking you to give me a reply as soon as possible so that we can proceed. Have you ever tested the new version? Many users are waiting for it, and are sending me lots of emails about it.
I looked at your site on the Internet. It is very beautiful, the graphics are interesting and the site leaves a clean impression. I think that paintings and art in general are very interesting.
I would be pleased if we can still keep the contact alive. In the future I will have more time to write emails in Spanish. At the moment I just can't. Sorry for being so direct but this is the truth.