Here you are:
v1.30 to v1.50
http://www.box.net/shared/10ceebujg5
v1.30 to v1.51
http://www.box.net/shared/kyd4k8b60c
v1.50 to v1.51
http://www.box.net/shared/nv5zdpqk9i
v1.50 readme
http://www.box.net/shared/qmul9xie2e
v1.51 readme
http://www.box.net/shared/uuflv8a6gs
v1.61 readme (but I can't find the actual patch)
http://www.box.net/shared/xe2jglxilk
I don't know the difference between v1.50 and v1.51 but I uploaded both anyway.