A newer kernel? I believe 104a is the newest available for free.
For applications there are lots of stuff, newer Firefox/SeaMonkey/Thunderbird, currently at 24esr level, OpenJava 6, Qt4 along with lots of Qt apps ranging from browsers to PDF viewer, OpenOffice, available at the same level as everyone else, various libraries needed for most of the above and I'm sure more.
Not sure I'd trust FreeJFS too far, costs $50 for the most up to date JFS along with a few other updates such as newer USB. HPFS is pretty good as long as you don't mind the limit on partition size and slow chkdsk.
Can look up URLs if needed.