I've been to the travel agents again today to make another payment. I also asked if I should be worried about what happened to XL. My TA isn't a big named one so I was a bit concerned the same thing could happen to me, but they're ATOL protected and, from the info she gave me, there's nothing to be worried about, thankfully!
Great news! The dollar is weakening again! It went to a very low $1.73! Everyone expected it to go even lower but it stuck there. Then in the last week it has shot up again to $1.8325!
It's gone slightly up and down but has always been around this mark, so hopefully it's stabalising again and we'll still get a good rate!
Still mega excited and can't wait to go!