It's an integral part of OpenWrt development that packages have to be updated, ported or created from scratch. It is also a good way to begin with developing, then you learn a lot of the essential skills needed to take part in the development process.
I have recently announced a new initiative with the some what cryptic name WIP-Day --> http://forum.openwrt.org/viewtopic.php?id=11193
WIP-Day will take place on the up-coming saturday at UTC 12.00 and 24 hours ahead, OpenWrt members who would like to participate should just join #openwrt-devel.
If your interested in learning about how to create packages then a good place to start would be --> http://nbd.name/openwrt#x1-330002.1.2
Another activity could be to add a list of packages, in this thread, who needs updating or result in installation problems - then other members could have a chance to give it a go