Hey Glen,
yes, I filled out correctly a certificate for admission + various others like Guarantee Information form, statement of financial support, personal info applications + hand in a id-photo + copies of passport/id. Actually they didn't officially say "you're in", because they have to wait for the okay of the immigration office. i don't know if this is the standard procedure, but i guess so.
actually i called to the immigration office, but the employee's English was not good enough to understand my concern, she tried to help me, but well, didn't work out so well. anyway, my gf will try it in Japanese for me asap.