"Not Found" in Gallery 1

hello guys , some one made some changes in WHM and htaccess of my cpanel and my gallery doesnt work any more , i mean the main/admin page works but it doesnt enter the albums and gives me "Not Found" error , i dont have any idea whats wrong with it
please pick any albums and see the problem:
http://www.microcalligraphy.net/gallery
sorry i am noob and dont know much about php please guide me

Gallery version (not just "2"):1
PHP version (e.g. 5.1.6): 4.4.9
PHPInfo Link (see FAQ): http://www.microcalligraphy.net/gallery/phpinfo.php
Webserver (e.g. Apache 1.3.33): Apache/2.0.63 (Unix)
Database (e.g. MySql 5.0.32): 5.0.89-community
Activated toolkits (e.g. NetPbm, GD):
Operating system (e.g. Linux):Linux
Browser (e.g. Firefox 2.0): IE, FX , Opera, or any browser