I'm currently have an llrnet.exe that is 32bit and says:

LLR network client 0.9b7 (based on LLR version 3.5.0).

Is that the latest version? Is there a win64 version anywhere?

Is there a website that has the latest source code or version so I can check it out? Maybe I will compile my own set to see if I can make any improvements and keep it posted on my factoring binaries page:
http://gilchrist.ca/jeff/factoring/

Jeff.