I thought you were asked to read the instructions that came with Audacity and/or check out the site/forums/support for Audacity.
Some of the other suggestions that are given in this thread were also given to you as well.
This is at least the fourth thread that you have started about Audacity and problems you are having with it.
Please stop.
Do yourself a favor and forget the TTS,get yourself a microphone (if you can afford one...my headset cost about $15) and do the voice work yourself or find family,friends,etc. to help you do voice work.
And make sure when you record (however you decide to do it) that you record in .ogg format because that is what FPSC uses.