Need joomla help. site rankings dropped since upgrade

[ClaireH-184886]

Hi, really having problems here with www.in2town.co.uk our site was always in the top ten for a large number of important keywords and since our upgrade from joomla 1.5 a month ago to joomla 3.0 we have vanished out of a lot of the search engines for important keywords

I am concerned that we could be doing something wrong.

two of our important keywords is lifestyle magazine and also gastric band hypnotherapy, but we are nowhere to be seen for these keywords.

I must be doing something wrong. The site is an old site, we have been around for many years and have always ranked well up until now.

We use K2 and i am just wondering if we have set up things wrong. for example

under this article it comes under the category of trip advisor

http://www.in2town.co.uk/trip-advisor/t ... -term-stay

now when you delete the article name and just keep the trip advisor you get a list of the articles and i am wondering if this is damaging my site.

http://www.in2town.co.uk/trip-advisor

any help in helping me to understand why my site has dropped in rankings would be great.

[PaddyDisplays]

So did you urls change when you upgraded the site?  If so did you 301 redirect them correctly?  Or are they all 404s now?

[ClaireH-184886]

hi, yes the urls seem to be fine.