Unfortunately you'll also have to re-download all of the teams, too. Do this late in the evening (if you're in the UK) and they'll download in seconds, as RaceDepartment's downloads seem to be throttled during the day.
Okiedokie, no problem at all, I'll do that. Yeah I've noticed that, I work from home so luckily, I can download during working hours and not be throttled!
Thanks buddy.