Hi Virginia,
Competing with TES & Guardian would be difficult for any site! You should focus on promoting the longer terms like "teaching jobs bracknell", p5 is pretty good for a category style page anyways.
That prospero company are link spamming, 30% anchor distribution for "teaching jobs", grew 1000 links in 10 days!
You guys should set this up btw: http://dense13.com/blog/2008/02/27/redirecting-non-www-to-www-with-htaccess/
My only other useful advice is to change the content of the tags to
**tags at the top of that page & to also investigate whether your site structure is logically built.
For example, if the site structure is
eteach.com/teaching-jobs-london
eteach.com/teaching-jobs-essex
You want it to be something like this instead:
eteach.com/teaching-jobs/london
eteach.com/teaching-jobs/essex
That will help Google work out what's going down.
You'll get to p4 with a bit of targeted link building to that new URL. p1 or p2 is gonna take some money, pimping & blackhat links. Not necessarily in that order.**