Trouble logging into Domain

I was given all of the domain login information by the domain's previous owner- am fairly certain it is all correct and that this is a problem with the FTP program.

When I failed to connect with the Address Bar on "Explicit..."

[01:59:16] PASS (hidden)
[01:59:17] 530 Authentication failed, sorry


I switched over to "Implicit" and still had no luck getting logged in...

[01:51:53] SmartFTP v2.0.996.43
[01:51:53] Resolving host name "ftp.flickerstick.net"
[01:51:53] Connecting to 64.235.243.132 Port: 21
[01:51:53] Connected to ftp.flickerstick.net.
[01:51:53] Connected. Exchanging encryption keys...
[01:51:53] SSL/TLS client handshake failed (Error = 0x80090308).
[01:51:53] The token supplied to the function is invalid
[01:51:53] The token supplied to the function is invalid
[01:51:53] Cannot login waiting to retry (30s)...
[01:51:53] Client closed the connection.


Any idea how to fix things so that I can log into my domain?

Thank you all very much,

- LK