Hi obcd,
thanks for your answer.
I'm aware of the fact, that flashing the bios with the wrong image is a serious problem. That's the reason why I've looked for the proper image. I got it from BadFlash.com. They were so kind to send it via eMail... 
And yes, you're right: Uniflash doesn't work for me, too. I booted from an CF-Card, DOS formatted with the HP-Tool mentioned here in this board.
I was able to reflash the internal 32MB SanDisk on my blue 1A. The problem I got was, that every time the clipper's powersupply was plugged out and in, it lost its settings. First I thought that was a reset from the bios noticing that the setup was incorrect and setting the values to factory default. So I was able to boot from the CF only once.
Later I was wondering, why I haven't checked the bios-battery earlier... it was empty 
Okay, so I removed the 3V Lithium battery, and attached a battery mount with 2x AAA batteries. And it works fine!
Actually I'm working on a slimmer version of DamnSmallLinux. It has got about 40MB at present. Maybe I can slim it to 32MB, so I can write it to the internal SanDisk instead of booting from CF.
I thougt a lot about using Midori, but I've serious problems building the image on my openSuSE 10.1
Do you know any other mini-distro's to start from?