I am now in the process of starting private pilot training.
ENJOY!!
Can I use my EFT flying to gain a PPL?
Yes. All the hours will count, but you may need to cover some of the exercises which you weren't taught in the UAS. 'Precautionary Landings', for example. Your main need will be pilot navigation; you will need to know how to use a Dalton-style computer to plan your navigation exercises.
My logbook is signed off by my CFI but alot of the flights are entered as EX23 etc. Is there anywhere I can get a copy of the EFT Syllabus so that I can show an instructor exactly what EX23 was?
No real need - you've got stacks of hours.
Sorry, but any exams you might have taken will now be outside the bracket for licence application and you'll need to take them again.