@mackb... this is likely something better to post in the forum section... but, to answer your question... I do have a flirc for testing, but I don't use it myself... I actually prefer the "dumb" remotes now that I've gotten used to them.
For the DELETE... what is the action that you are expecting...
DELETE basically takes keys that are to the right of the cursor and removes them.
BACKSPACE takes keys that are to the left of the cursor and removes them.
In the MINICLIENT it appears that I'm implementing DEL as being backspace... and I haven't mapped BACKSPACE at all... I can look at this.