We are currently working on collecting fresh exams for the archive and will launch it as soon as possible.
However all hope is not lost if you want exams from previous courses! As a government agency BTH is ruled by something called Offentlighetsprincipen, a law concerning the freedom of information. A written exam is an official document and thus BTH is obligated to provide you with a copy of it if asked to do so, provided the document you ask for exists. The Student Centre is a good place to start in case you want to do this. Sometimes it occurs that a solitary teacher is holding the exams and has been doing so for an extensive period of time (which is not supposed to occur). Even in this case BTH as an agency is obligated to provide the documents. Try speaking directly to the teacher.