install problems

I am trying to upgrade GD on redhat 9. I was able to install it but need to rebuild php to get it running. Since php.net says they do not distribute unix binaries, I decided the easiest way to get GD2 working was to upgrade to php 4.3.11 Unfortunately, this did not work. I get this error. [root@x2 php-4.3.11]# ./configure --help -bash: ./configure: Permission denied [root@fruitlands2 php-4.3.11]# sh configure : command not found : command not found [numerous identical lines deleted] : command not found: : command not found: 'onfigure: line 926: syntax error near unexpected token `in 'onfigure: line 926: ` case X$UNAME in [root@x2 php-4.3.11]# ./configure -bash: ./configure: Permission denied Just to be thorough I got flex and bison and get the same error when I try and install them. Could my successful install of GD have done something bad to sh? [root@x2 flex-2.5.4]# sh configure : command not found : command not found : command not found : command not found : command not found 'onfigure: line 42: syntax error near unexpected token `do 'onfigure: line 42: `do [root@x2 flex-2.5.4]# Thanks for any help on this.