Oh dear - that's a shame, muddinmom. Unusual for Rootschat - usually there are people trying to help!
I'll try to make some suggestions - not sure if you've already done any of this but you will tell me if you have!
I'm not researching in Scotland, because most of my lot have been researched and written up, but I believe scotlandspeople is a very good website. Have you bought credits and searched there? From memory I think you make a relatively small outlay on credits, perhaps five pounds' worth, which would probably allow you to search comprehensively for your Scottish folk.
As for your Sussex folk - have you posted on the Sussex board here? Have you searched the IGI for them (and the Scottish ones)? As you know where Caroline Dill was born, you should be able to identify the parish her family belonged to. If the LDS has filmed the parish registers of that parish, you could order in to your local LDS Family History Centre, for a very moderate price:
1. A film of baptisms covering the year 1703, which should give you her parents' names if you find her baptism;
2. A film of marriages covering the years around 1703. If you find her parents' marriage, it will give you her mother's maiden name, which you are unlikely to get from Caroline's baptism record.
Then you can try to push backwards from there.
MarieC