Ok, I installed it and activated. But when I go to Options, page is blank. FAQ says "In some cases the plugin may have problems if not enough memory has been allocated to PHP. Try ensuring that the PHP memory_limit is at least greater than 8MB (limits of 64MB are not uncommon)."
Is there anything I can do, since my host replied my request for increasing memory_limit with "no sir, can't do. 8MB is maximum"?