Other Apps Support (Deprecated)

I was wondering what the Differences were between Portable Sunbird and the Calendar Extension.

Just major differences in a list is fine I dont need a review of each.

On a side note, the Calendar Extension wont install in PFF 1.5, It says the compatibility is 1.0+

edit: Upon Further research, I found the answer I was looking for, and also found that the 1.5 problem has yet to be addressed by the developers.

Does anyone have a free bin unpacker for Windows? Mac-on-a-stick requires a bin to be unpacked, and I tried with Stuffit, but it just makes a smil presentation?!?! Supposedly it changes into some image files. Please help! Maybe someone with a Mac could unpack it for me? Please?