AFAIK no one tried to actually patch those versions of the client, and it’d be impossible anyway since the program that comes built in is, well, built in. No way to modify it unless you reassembled the ROM. But someone did attempt to get one version working from an emulator. Sadly it was a version that required HTTPS for login (anything at or above MSNP8 basically) and at the time I believe Escargot still relied on SNI for HTTPS so that failed.
Not sure if it’d work now that Escargot supports as many old TLS 1.0 ciphers as it can, but it’s worth a shot. Also anything that uses MSNP7 or below (approximately anything before 2003 or 2002) should definitely work.