You can type your CV yourself using Microsoft Word or if you do not Word you can download free OpenOffice which does the same thing.
I would advice to google some typical questions (for the type of the job you applied) that can be asked during an interview.
I have not seen anybody offering free CV typing services but I have seen some agencies offering free CV review services which can be handy once you have your CV ready. Just google that as well. Internet is an amasing tool with tons of free info and advice.
There are superb libraries in the UK as well with lots of books about employment.
It does take time but if you are motivated enough you will get through that challenging time of unemployment.