Text Widget Capabilities

After a couple of hours searching and getting nowhere….

Is it possible to put code into a text widget?

I want to use this great little events calendar from http://n0id.hexium.net/plugins/

Normally you would put <? if (function_exists(‘do_calendar’)) { do_calendar(); } ?> into the sidebar.php but I want to use widgets ( and have a dozen or so in there already )

I could still put the code into the sidebar.php but there appears to be no way to position the calendar between widgets. It just lands at the top.

SO: is there any way I could use this code <? if (function_exists(‘do_calendar’)) { do_calendar(); } ?> in a text widget?
(I have tried it but nothing shows up except the widget title)
Is there some other code that I need to wrap it in?

cheers in adavance
chris