Hayley - welcome to the site!
May I ask who you rep'ed for? If it was someone like Thomsons or MyTravel etc, you'll find it an easy step within the same organisation.
I dont know who is recruiting at LGW but here are a couple of useful sites to check out:
www.aviationjobsearch.co.uk
www.cabincrew.com
They show most of the airlines jobs.
Best of luck!
Abby