The following information was provided by the package's contributor.
Name of contribution: NewTX
Author's name: Michael Sharpe
Package version: 0.91
Location on CTAN: fonts/
Summary description: New version of txfonts, with improved metrics and options.
License type: lppl
Announcement text given by the package's contributor:
Splits txfonts.sty into two independent packages, ntxtext.sty and ntxmath.sty,
each with fixes and enhancements. The latter has been remetrized to provide
a less tight appearance, and to provide a libertine option that substitutes
Libertine italic and Greek letter for the existing math italic and Greek glyphs,
making a math package that matches Libertine text quite well.
thanks for the upload; i've installed the new package, and made an entry
for it in the catalogue repository.
Users may view the package catalogue entry at
http://www.tex.ac.uk/tex-archive/help/Catalogue/entries/NewTX.html
or they may browse the package directory at
http://www.tex.ac.uk/tex-archive/fonts/
The catalogue entry will have appeared on the web by tomorrow
morning (Cambridge time).