yeah. flash your device with the new kernel (Image-os07-3.2007.10-7-mppe.bin). your kernel now knows mppe-algorithm which is needed by pptp.

then install pptpclient-1.7.0.deb. this installs an armel compiled version of pptp into your system.

now you can follow this link:
http://pptpclient.sourceforge.net/ho...figure_by_hand
(a ssh-server on your nokia and a pc is recommend for this)

but after this is also done, there is just one hurdle. take a look at the routing stuff you can find also on the link.
i think http://pptpclient.sourceforge.net/ro...#all-to-tunnel is a good point to start.

after the routing stuff is done, everything should went fine...

greetz