Be aware that credentials are sent in plaintext with standard FTP protocol. Anybody along the connection route can see them, so FTPS is your friend.
These are 32/64-bit binaries. Interestingly enough 64-bit binaries are also called like 'libeay32.dll', but need to be in directory '64'. Just unpack TC_FTPS.zip into totalcmd directory.
Normally you will need passive mode on.
According to TC help you can put "PROT C" in Advanced/Send Commands to disable encryption of data connection. This will improve performance at lower security - it works well. Tested with Total Commander 8.52a.