A new official version of pak128.Britain adapted to work with Simutrans-Experimental has been released today!
This version includes some substantial updates from 0.8, including support for the liveries feature, snow graphics for most industries, a large number of new pre-grouping steam locomotives, and full support for the minimum/maximum loading times feature introduced in Simutrans-Experimental 10.0. The pakset is eminently playable in its current state, and has been refined by several years of playing and testing, including, more recently, online playing.
You can download the new version from here.
More details at Simutrans International Forum.
On the other hand, the pak64.japan is back after major overhaul. The content is under a mixture of licenses so it won’t be hosted at Sourceforge, but the binaries and the source are available