Just open the program, fill out your information, and you're ready to start sending messages.
Use the menu bar or the buttons to access options like attaching images or customizing messages. To send a message to someone already in your address book, just click on the arrow next to the "To" field, and your contact list pops up.
TalkSender works with AOL, Eudora, Netscape Messenger and MS Outlook Express. You can also set up multiple users.
For more detailed information, including on updates, please read the documentation or visit the home page.
For voice messages, you will, of course, need a microphone.