Former Seven West Media executive assistant Amber Harrison is fighting to have a website that has published confidential legal advice about her case taken down.

The legal advice from her former lawyers Harmers Workplace Lawyers has been posted anonymously on a website blog and paints an unflattering picture of Ms Harrison's legal prospects and advises the former assistant to accept an offer from Seven to settle the case.

Ms Harrison, who is now represented by Julian Burnside QC, obtained an order in the Federal Court on Monday against the San Francisco owner of the blog platform to remove the publication of the leaked letter but at the time of publication the website had not complied with the request.

Former Seven West Media executive assistant Amber Harrison and CEO Tim Worner.

A hearing scheduled for late on Tuesday in the Federal Court was adjourned and it is believed Ms Harrison will seek orders from the company to find out who is behind the leak.

Harmers - one of three or four law firms Ms Harrison has used – is owed more than $334,000 in unpaid legal fees after acting for Ms Harrison.