core13: An Arduino core for the Attiny13 *testers wanted*

Hello,

I've just started using the arduino and successfully uploaded the blinker to my attiny13a following:

and
http://hlt.media.mit.edu/?p=1229

I've ran into the default fuses problem and fixed it by "installing bootloader" in the IDE but now I have a question that wasn't answered around here:

Can you use all the pins on this device (the reset pin, too) without a bootloader?! (my reading from various forums says NO, not without setting the fuse so the pin is no longer RESET and needing a high-voltage programmer to reprogram the device)

Can you help me understand if and how this works?