Can you try using Mibbit,

You should see the sign-in screen:

Select the yellow Server link and type into the Server: field.

Type your chosen nick into the Nick: field.
Note, if you have a registered nick, you would enter: nick password

Type #absolutewrite into the Channel: field.

Then select the Connect button.

Which should take you to the #AbsoluteWrite chat channel. (I just tried this -- and it worked.)

The above is taken from the FAQ about AW IRC Chat Channel (How to get there, who the operators are, etc.) thread.