Forum OpenACS Q&A: Re: OpenACS: Error: invalid command name "parameter::get"

could you please post the full stack trace of the first error message that you get in your AOLServer error log file on startup? I don't recognize the problem you are describing.
Sounds like your acs-tcl package (and propably the rest of your OpenACS checkout) is hopelessly out of date, and needs to be cvs updated.