check out the thread below called FTP script.
This is the implementation I am using, and it appears to work, with the noted exceptions.
The attached file is the one I was provided (adapted to my URL).
It has been modified only to open inside a frame using the following:
top.FRAMENAME.location.href = 'bla'
If you have any ideas, please advise. I am curious about the errors you mentioned as well. No mention of it thus far.