I would axe the 'enter' screen entirely.. this is like having two front doors one infront of the other on a house. Rather useless.. Have people get instant access to the 'meat and potatoes' (content) right away.
The following list of comments pertains to your rules page:
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Your rules page (
http://birdmansplace.myftp.org/main/rules.html) does not
validate.
On that same page, you have underlined text that looks like links but are not. I would remove the underlines from those.
I find you have too many different coloured text going on.. I would stick to making all non links one colour, and the links another. Unify the different text sizes as well.. too much variation going on. Having different link colours on hover would be nice.
Having the 'Welcome to the birdman's place' feels redundant, given the header.
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You have a top menu and a footer.. but the content feels just dumped in there.. would be nice to encapsulate this all into some form of GUI (graphic user interface), with perhaps borders and what not. Speaking of the menu and footer and content, they all seem to vary in width compared to the top header banner.. I would make all three sections the same consistent width.. it lines things up much better.. the eye doesn't feel like it is 'dancing' all over the place.
As for the home page, it doesn't offer much info.. I would make much better use of the content within this section.. (what the site is about, how to join, etc..).
The stuff in link 'Site-info' can probably be merged into the home page.. all in all... somewhat plain and has a disorganized and non-informative look and feel to it (sorry.. not trying to sound demeaning.