there is now a new search active on the website. The main reason for implementing this is that the old search application 'django-sphinx' is not maintained anymore. Instead we are using django Haystack in combination with Whoosh for the indexing.
The most importand change for you is maybe that you can choose the 'section' (Forum, Wiki, Maps,...) directly in the search box of the navigation bar. There are also some other minor changes when displaying the results. The search page has also a 'Help', which could be rolled out if you click on the header. The search defaults to search only the last year from today when searching the forum and the news.
Hopefully you enjoy it.
Edit: You may have to reload the page by pressing CTRL + F5 (or similar) to update your cached stylesheets.