Why not write a blog about the sort of support that you need? Writing things down can really help to keep you focused. I know that everyone's different but I find that it helps me - especially when people add supportive comments.
Hope you find your motivation again soon. You can choose whether to carry on or not - but you know where slipping back will take you. Reading some of the motivation articles in the Lifestyle Center (under Healty Lifestyle at the top of your page) might help.
Welcome to the C25k team! I know you will love the program. The first couple weeks can be tough and you will have times when you doubt whether you are ready for the next step, but you will do it, you will amaze yourself and you will be a runner!
***Be brave, be bold, be fierce and be fabulous***