indeed, i've requested that you post the query string (ie. the url in your browser) as i've not noticed any real problems with searching anymore. The only thing i can thing of is the lowres=true sites, which is why i need the query string.
Just copy and paste your address bar here
From that I'll see if i can reproduce. There was indeed a code change required between our last host and our current in regards to the search flood filter, however i thought this had been fixed as i've been having trouble reproducing.