The information is on the main page, about halfway down:
Send me your stories, I'd love to see them and post them here - email your story to
stories@grometsplaza.net
Check out the Writer's Guide for submitting stories.
After you send in a story it goes into a queue, with a waiting time of 4-6 weeks typical. I strongly recommend reading the Writer's Guide as it has recommendations for all the usual syntax, grammar and format pitfalls that detract from a good story.