Should be grateful it was only 48 hours. Googlebot used to spider my site about 30 times a day then suddenly it stopped. Three months went by without a single hit from googlebot except when I faked my useragent to check it wasn't blocked. I emailed Google and they said nothing was wrong and my site wasn't banned or anything. After four months google bot started to return in trickles and is now back up to about 30-40 visits a day.
You don't say what this is for. Anyway check that you have put the write information into the config file. Sometimes on virtual hosting you need to specify a full server path as the SQL server is not localhost.
Make a back up of your current database using phpMyAdmin or whatever your host provides. Download www.carbonize.co.uk/install.zip and extract it. Up load the guestbook 2.3.1 files to your site, overwriting 2.2. Upload my install.php file to the guestbook folder overwriting the existing one. run the file by going to it in a web browser. You will get some error messages that I am trying to track down but 2 people who have used it so far have said it worked.
If you have this problem or wish to upgrade from 2.2. to 2.3.1 please try www.carbonize.co.uk/install.php I think I managed to fix one persons problem with it.
the file you want is in the lang directory. Probably english.php. This is where all the wording is stored and why AG is easily customisable to any language.