The 4th edition will be out early in 2017 and available for the fall 2017 semester. Stay tuned. Production progress can be monitored at Springer.com
A gentle introduction to time series analysis is available (for free):
The preface has more details.
To download R, go to CRAN and download the appropriate installation. The R issues for time series analysis page is still alive. There's a tutorial on Time Series Graphics and the R time series tutorial has been updated. Go here to get your Quick Fix.
A text on Nonlinear Time Series Analysis was published by Chapman-Hall in January 2014. The text can be used as a reference for a second course in time series analysis.