I don't know if this last firmware update (4.46) blocks it but if you're referring to the changes made during the last firmware update (4.41 I think), know that it was never blocked, the process just required an additional step that took a few minutes.Is there a way to download games via PC rather than the PS3 since the firmware update blocking ps3proxyserver?
To answer your question, I'm unaware of another way to download it on pc but let me know if you find one.