Heya IQBAL...
Just a look at how the wind is presently blowing... I've checked with tcl devs, they say support for tcl-8.4 is hanging by a thread, so you might test p/o with aolserver-4.5.x and tcl-8.5; the tcl folks are saying that there are fewer bugs, more support and an interesting little list feature that's kinda like an iterated shell backquote, turns a list appearing as a single parameter, into each item of the list as a parameter.
I know oct is aware of this, and they made some decisions about future openacses; check with them to see what they decided about tcl.