Seem's like faulty script or just database error.
Make sure you are connecting to database.
Hmm i think some files are damaged. Try use other site files maybe will work
First you must use Xamp ver 1.7.1 or an earlier release !!
Second Do the following:
Look for (in reg.php)
do_query("INSERT INTO account_login (id,name,password,originalPassword) VALUES ('$id','$login','$encr_pass','$pass')","AccountServer");
Change into
do_query("INSERT INTO account_login (name,password,originalPassword) VALUES ('$login','$encr_pass','$pass')","AccountServer");
That's it
get another Topcp your scripts are damaged by you or by itself(from the begining) i had the same problem
note:do not download from the same source