try the new 10.4.0 kernel.
Normally almost all of these issues have been fixed.
I rewrote the patcher slightly (using getsectdatafromheader(...) for getting the __text section data.
It should now work thus...

i successfully forced my snow leopard 10.6.3 with (qoopz patched kernel 10.3.0) to 64-bit by adding the kernel flag '-force64' on the chameleon boot menu but the problem is that i cant run 64-bit kernel extensions. Through a software i came to realize that my kernel is still in 32-bit mode. What should be done with the qoopz kernel to make it able to run 64-bit kexts???