Did you make sure your AOLServer's tcl is directed to the version 8 binary?  Check your bin directory; by default it will look like this:

lrwxrwxrwx    1 nsadmin  nsadmin        7 Jul  5 16:36 nsd -> ./nsd76*

-rwxr-xr-x    1 nsadmin  nsadmin  1703824 Jul  5 16:30 nsd76*

-rwxr-xr-x    1 nsadmin  nsadmin  2649930 Jul  5 16:30 nsd8x*

You want nsd to be a link to nsd8x instead of nsd76; cd to the bin dir and run "ln -sf nsd8x nsd".