\def\cbll#1{\cell{\textbf{#1}}}
%
\begin{calstable}
\colwidths{{60pt}{120pt}}
%
\thead{Hello from the THead caption!\par
\brow \cbll{eee} \cbll{fff} \erow
\brow \cbll{ggg} \cbll{hhh} \erow
}
%
\tfoot{
\brow \cbll{iii} \cbll{jjj} \erow
\brow \cbll{kkk} \cbll{lll} \erow
\lastrule
I am the TFoot caption\par
}
%
\brow \cell{aaa} \cell{bbb} \erow
\brow \cell{ccc} \cell{ddd} \erow
\end{calstable}