I have long been an investor in Cachecoin but I am getting a little impatient. All I read about is mining issues. I too experienced these and decided to move to Darkcoin a month ago (glad i did). I'd like to return to Cachecoin but I just don't see the progress. I might sound like a crone, but i am really just asking for an update on what's going on and what goodies we can expect? Might I suggest DarkCache? 
If by DarkCach you mean anonymous transactions, then yes, we are working on a method. As for the mining issues, i've only heard from one person with problems above. If you run into issues, i'm sure people in irc would be glad to help. You can use webchat to join irc if you don't have a client. http://webchat.freenode.net/?channels=cachecoin