You can only download FXHome products from the http://fxhome.com domain. If you followed a link to a msn or live.hotmail.2020.com link etc.. you've been had.
Change your msn/hotmail password asap as you've probably submitted this the people causing the problem. Please can you also reply with the email you received so the team at FxHome can report the domain.
Also notice how this is timed for a bank holiday weekend so the thieves can hit as many people as possible before 'normal business' resumes.
Always assume any promo email you recieve over a holiday weekend is suspicious - bona fide businesses will want to be available to service any promotional requests, not pick a time they're all going to be out of office for 3 glorious days!