No prob.
The file was almost the half of original printthread.php and there were modifications in the part of code that had left in it. I have seen (at least, I think that I have) posts with more original code than mine, but it's OK of me if you think that I posted a significant part of original code.
Does this rule apply if I post a new thread in "beta hacks" with my modified file?
Since it's a new file, it's always easier for someone to just upload it than to copy the original file and rename it and then go through a bunch of steps with find-delete / find-replace / find-add. Not to mention that with these steps I HAVE TO post almost the same amount of original code that my modified file had.