Any hints with the trackpoint and wireless card will be apreciated.
That is a bug in the eCS 2.1 installer. It places MOUSE.SYS in CONFIG.SYS, along with the AMOUSE version of USBMOUSE.SYS. The result is that click does not work. Change the MOUSE.SYS line to the AMOUSE.SYS line (probably there, but REMed).