Funny that in order to enter and include a screenshot, you need ten reputation points. Go figure.
4 Answers
Good point - though some might argue that an app doesn't deserve a screenshot until it gets at least one upvote.
You have a valid concern though.
If you associate your account on stackapps.com with your account on stackoverflow.com (for example), you automatically get 100 rep (that's why I'm on 101 at the moment :)
I believe you just click on your username at the top, then on the "accounts" tab.
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only if you have 200 rep on the target site, which this user does not Commented Jun 8, 2010 at 23:31
This reputation is no longer needed, to post images, as of about September 2013.
From hairboat♦'s answer on Meta SE:
The restriction has therefore simply been removed on all sites except Stack Overflow, Server Fault, Ask Ubuntu and Super User.