however the chart shows I can only pick advanced locks why? I found the bobblehead and put 1point into locks shouldn't I be able to pick better locks? is there a secret to unlock the bobblehead for my point after I found it?

I believe it just makes locks easier to pick. It does not give you the perk you still have to unlock that.

Yep, it just increases the size of the sweet spot. Just like the one Bobblehead that gives you an extra attempt when hacking terminals. For me a total waste as I have no problem hacking terminals or picking locks. But hey if I want that 20 Bobble head achievment I need to find them all LOL