For some reason, the tomato-K26-1.28.RT-MIPSR2* upgrade code doesn't seem to be able to load a very large image.
To resolve the problem, I downgraded to ftp:~~ftp.dd-wrt.com~others~eko~BrainSlayer-V24-preSP2~2010~12-24-10-r15962~broadcom_K26~dd-wrt.v24-15962_NEWD-2_K2.6_mini-WNR2000v2.chk (reset nvram!!!), then from konqueror (firefox kept failing) used dd-wrt to upgrade.
i was able to load http:~~tomato.groov.pl~download~K26~build5x-132-EN~tomato-K26-1.28.RT-MIPSR2-132-MiniIPv6.zip (again, reset nvram!!!) onto my wnr2000v2 using this method.
At this time, http:~~anon.groov.pl~?model=Netgear%20WNR2000%20v2 shows 132 as the latest version that anyone is reporting running. 138 doesn't work for me. (the hyzoom images are only chinese.)
Credit for the idea goes to: http:~~www.linksysinfo.org~index.php?threads~wnr2000v2-and-tomato.71918~#post-270271
keywords for search: netgear wnr2000v2 tomato 138 shibby
sorry for the lack of real links, my karma is too low. replace ~ with /