First of all, download the unsigned gnubox file to your desktop.
Then, download the DevCertRequest at: https://www.symbiansigned.com/DevCertRequest_30_10_2006_v2.0.exe
Then download the Nokia S60 SDK at (make sure u have activeperl installed too)...
On a fresh restart, the first time you load up your contact scree, I notice it to be a lot more laggy than the old firmware was. Before it was almost instant....now there is a second or so delay (this is with 100+ contacts loaded).