It doesn't seem this board is checked regularly, but I found it through the Keenspace Board List. The similarity between our strips surprised me a bit.
Check out my comic strip at <A HREF="http://glickglidewell.keenspace.com" TARGET=_blank>http://glickglidewell.keenspace.com</A> , specifically the storyline called "And Then It Stopped Making Sense". It features the Temporal Continuity Agency (TCA), which is similar to your thing.
Don't worry! I won't sue ya! <IMG SRC="http://www.keenspace.com/forums/wink.gif"><P>------------------
<A HREF="http://glickglidewell.keenspace.com" TARGET=_blank>Glick Glidewell</A>
Featuring time traveling teenagers not played by Michael J. Fox.<P><A HREF="http://romeocomic.keenspace.com" TARGET=_blank>Romeo & Juliet</A>
Set in the future! In comic form!