Debian :: Configuring Appletouch Trackpad For 12" Powerbook (ppc)

trying to get debian working on an apple 12" aluminium powerbook from summer 2005. Right now, I am specifically trying to get the touchpad to work. Googling and searching the forums suggests that I need the appletouch module. I believe I already have this as it is now compiled into the kernel. I believe that I'm also supposed to get this to work properly with the synaptics driver. I've installed the synaptics input for X. I've also got pbbuttonsd though this doesn't seem to affect the trackpad even though there is a setting for it.

Right now, I can move with the touchpad but I cannot do anything else. I cannot tap to click and I cannot use, for example, two finger scroll. This is very frustrating because I'm so used to doing these things that I keep doing them expecting them to work any time I'm in a GUI environment!If I kill the display manager and x server and run Xorg -configure as root, Xorg always crashes so I've had no luck producing a base xorg configure file which I believe I probably need to edit.

I'm not currently using gnome. I've installed both lxde and xfce to see which I like best although I'm not sure this was wise because I'm confused about how to switch between them. When I tried ubuntu 10.04, the trackpad also partially worked. In that case, it was almost impossible to move with it, difficult but not impossible to tap and very easy to scroll. The trackpad works perfectly in os x so it isn't a hardware issue. (Ubuntu 10.04 ran like treacle even with no applications beyond gnome running - hence my not installing gnome.)

Debian's wiki has a (very, very brief) section on installing on a 12" powerbook which points to [URL] for powerbooks after february 2005 such as mine. But this page seems very out of date and to discuss an older version of the driver before it was included in the kernel. It also pre-dates support for airport extreme wifi etc. So it isn't helping much because I'm not sure what, if anything, might still be applicable.

Right now, pbbuttonsd tells me that it has no clients when I pass -listclients to the command-line interface. trackpad show says there is no trackpad. xfce's settings pane for mice shows a total of no fewer than four devices: my logitech mouse; the trackpad which it believes is another mouse; an xtest device of some sort; and mac mouse emulation. I'm not sure what the last two of these refer to.I realise as I write this that I'm not really sure what information might be relevant so if it is not included, perhaps somebody could let me know what I should add. Version of debian is stable (squeeze). PPC is a 7450 (G4 PowerMac 6,8) 1.5 GHz 512kB L2 cache 167 MHz bus with 1.25GB RAM.