I have made some progress (rightly or wrongly).

Steps:

1) I created Integration Services Catalog

2) I imported my package

3) I configured my package (Connection Managers > FTP Connection Manager > Added server password

4) Created a job then ran the package.

This worked (rightly or wrongly).

I could not work out how to use a variable to pass FTP credentials.

I now have another issue in that the format output is incorrect.....

My SSIS Flat File Connection Manager is configured as follows:

Format = Fixed Width

Header Row Delimiter = {LF}

Header Rows to Skip = 0

I have attached the output format + added the required format.

Thanks,

Phil.