So Blaze is the same person as DJ Blaze?
Other xm's I have, don't contain any polish words in the credits, more written by an english writer, which suggests another Blaze?
Post them here and we can check. For a reference you can download the file allmods_yyyy-mm-dd.rar (currently allmods_2010-07-30, updated daily) which holds an text file listing of all modules currently publicly available at MODLAND. Open the file in a lister and search for "Blaze\" to find all modules of DJ Blaze (on MODLAND his files are stored by the name Blaze).
I also have a mod called "It's raining.xm" credited to Blaze (Hubert Wojtowicz), Intermediate MC5 entry placed 11th. Any idea who this Blaze is?
It's by DJ Blaze, too. You seem to have the anonymized release of the module. I don't know why he put that name, probably it was ment as a joke.