If you want to translate to portuguese just do it and send the file to the A-Team. This is part of the original message of Tom:
How can you translate the program? It is rather simple. In the AChat directory under prog_data you can find a file named texts.txt. Open this file with Notepad, translate it using your national character set (not only English characters can be used) , and save it with encoding 'Unicode' (there is an option in Notepad under 'Save As...'). Warning! If you don't choose Unicode encoding you can loose your national characters!!
The result can be seen in AChat immediately, so you can check the result continuously.
WARNING! Upgrades can overwrite this file, so please keep it on a safe place, not only in the prog_data directory!!
It is possible, that some national charcters will not displayed in AChat, but these will be added soon, so the translated text can contain them.
Could you please help to improve AChat experience?
You can send the translations here: email@example.com
If you have some questions, just ask here or send a pm to me.