I added links to the current files in the first post, you can also find them on the 7th page and here:
For those experienced that can handle diff comparisons, I have the differences between stock 5.5.1 threads files and the calendar modification (v2.2).
diff.zip (stock 5.5.1 on the left and modifications on the right)
For us mere mortals, here is a more understandable instruction set:
calendar_2_2.zip