I have to correct my previous statement. Total remote is incompatible with Axim's and Casio pda's in regards to the IR extender.
The program itself has some issues too. In CCF mode it crashes frequently when sending IR signals - but only for some signals. The same signals work fine in TR's native mode.
I guess there's a chance it'll work in the future if a patch is released - we'll see what their support says.