e-commerce plug-in and goldcart

I am running WordPress 2.8.4

I am trying to install goldcart, but I can’t get wp-e-commerce version 3.7.2 to activate.

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 122880 bytes) in /home/fouoneo4/public_html/com/wp-content/plugins/wp-e-commerce/wpsc-admin/ajax-and-init.php on line 1005

Can anyone tell me what to do to make all of this work?