Apple has rereleased the Mac OS X 10.2.8 Update.
It can be found in your Mac OS X Software Update, and reportedly addresses the ethernet issue as well as updates the battery status menu.
This latest update appears to upgrade both 10.2.x as well as the previously-released 10.2.8 (which was subsequently pulled)... and also provides a 10.2.8 upgrade to PowerMac G5s, which were excluded from the previous 10.2.8 update.
Apple Knowledgebase Links: 10.2.8 (G5) and 10.2.8 (non-G5)