Criteria for photos accepted into database?

Submitted 5, 3 accepted, which is fine. I was just wondering if there was something I could do on my end to make my photos more appealing or acceptable. Might be something simple that I'm doing wrong.

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I'm not an enthusiast, I just play one on message boards.

Sharp, not duplicating existing photos, good lighting and exposure, shot composition, not wider than 700 pixels... those are what I look for.

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Jeff - Webmaster/Admin - CoasterBuzz.com - Sillynonsense.com
"The world rotates to The Ultra-Heavy Beat!" - KMFDM

When uploading a photo, I get something like this:

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Server Error in '/' Application.
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Request timed out.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Request timed out.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:

[HttpException (0x80004005): Request timed out.]

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Version Information: Microsoft .NET Framework Version:1.0.3705.288; ASP.NET Version:1.0.3705.288

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I'm using a mac OS X, any ideas?
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You are about to discover what lies beyond the 5th dimension, beyond the deepest, darkest corner of the imagination in the Tower Of Terror.

Slow connection. If it times out, for some reason something along your connection is slowing you down.

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Jeff - Webmaster/Admin - CoasterBuzz.com - Sillynonsense.com
"The world rotates to The Ultra-Heavy Beat!" - KMFDM