Mike Diehl, here. Philippedada is correct on both counts: Paul Volk and I designed this font in 1991, and this version is incomplete -- we created an all-caps version to distribute as a freebie. So Nippelpip, please do use the font, for whatever you like -- except to sell it, of course. There's a modest showing of the lower case characters here:
http://www.mikediehl.com/type/. There's an email address on the page, should you be interested in purchasing the fuller version. Thank you all for your interest.