Teacup too large for ATMega168 (Teamug?) (no replies)

I'm trying to use Teacup for my McWire[1] repstrap using an Arduino Diecimilia. I chose Teacup because the wiki page says it fits in an ATMega168, but when compiling even a fairly simple setup (1 thermistor, 1 extruder, no USB), the compiled size is 17,512 bytes (of a 14,336 byte maximum). I see last year somebody with a somewhat similar setup went just over the limit. Has Teacup been growing fat because nobody develops on '168 any more? Is there anything that can realistically be taken out to reduce the size by that much?

Thanks,
-Lars
RepStrap blog: [repstrapdk.blogspot.de]

[1] Yes, I know it's an old, crappy, discouraged design. But it's my machine, and dammit I want to make it work!