Download truecrypt*.deb from http://www.truecrypt.org, the Ubuntu package from truecrypt web site
Open in Ark and you will find truecrypt.tar.gz file. Open this file and extract the folders usr and share to the correct path location on your computer.
You can now directly execute the file truecrypt file. Note that if an RPM is available for Fedora on the truecrypt web site, download that and you need not perform the steps outlined above. Just use:
# rpm -ivh truecrypt*.rpm