i guess the correct name is phpMyAdmin.
Anyway, if you know the correct directory name and location, you should find inside an invisible file (invisible because of the dot before the name of the file), called .htaccess.
By typing "ls -a", your linux should show all these kind of files.
Try to delete the .htaccess "rm .htaccess" or to rename it (mv .htacces htacces.bak)
Off-Topic: slackware 10.2 is getting older, you should have a look at www.zenwalk.org