Links for wallet binaries aren't working. 
1. it is easier and more secure to compile from github than running the binary.
2. the link to binary on blackcoin.co works fine for me.
Not everyone has the skills to compile a binary so it's impossible for them to use any wallet without a binary.
but the link to the binary is working.. (at least at my end)
edit: also the instruction on compiling/installing is here: http://www.reddit.com/r/blackcoin/wiki/installation-and-building