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".