Yes, site could use more professionalism...
Overall, I give the app a 2 out of 5.. I dont like that big cursor...the PHP, Perl, etc. functions need to be enabled. Im also not feeling the whole about box thing where you used ASCII to spell out DarkCode. I prefer them short and sweet. Although, its very nice for a first app
[EDIT]On second thought, if you need help with code snippets from PHP, im more than willing to help you there [/EDIT]