The trick is getting the media keys functioning. It's extreemely frustrating to not have at least an escape, enter, up, and down key.
At least with my Fujitsu ST1510 there are the fjbtn_drv drivers for it that function more approriatly than the 'apanel' drivers.
Here is a quick google search for yours that explains how to set up the whole tablet in general.
http://kellyandsopho.com/tiki/tiki-index.php?page=LinuxOnHpPaviliontx1000z