it is the 1.01... think it's the one said in the manual. the reset technique is also the same as told in tthet manual: a 10uf condensor between reset and GND... i've been keeping the tries over and over, getting now this exciting new error:
avrdude: usbdev_open(): did not find any USB device "usb"
i'm i right using no external clock for the attiny, and using the attiny85(external 20 mhz clock) selection?