Currently Being ModeratedJan 30, 2013 11:20 AM (in response to Boboonski)
Skype's AppleScript support is incredibly weak... it's been a while since I looked at it, but a quick peek indicates it hasn't got much better - there's no direct support for manipulating messages, so you have an uphill battle.
Skype uses its own API for interacting with the app, and AppleScript support doesn't extend much past the 'send' command where you send API commands to the app and parse the results.
The Skype API is documented here. There are other examples online. Good luck.