I took a look at the sym link on the server and it points to -
lrwxr-xr-x 1 _softwareupdate _softwareupdate 128 Sep 7 16:39 index-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog -> /Library/Server/Software Update/Data/html/content/catalogs/others/index-mountainlion-lion-snowleopard-le opard.merged-1.sucatalog
So I go take a look at that directory ...
-rw-r--r-- 1 _softwareupdate _softwareupdate 20414073 Sep 9 09:54 index-leopard-snowleopard.merged-1.productscache
-rw-r--r-- 1 _softwareupdate _softwareupdate 1818997 Sep 7 15:34 index-leopard-snowleopard.merged-1.sucatalog.apple
-rw-r--r-- 1 _softwareupdate _softwareupdate 1818997 Sep 7 15:34 index-leopard-snowleopard.merged-1.sucatalog.apple.previous
-rw-r--r-- 1 _softwareupdate _softwareupdate 1436827 Sep 9 09:53 index-leopard-snowleopard.merged-1.sucatalog.composite
-rw-r--r-- 1 _softwareupdate _softwareupdate 25530655 Sep 9 09:53 index-lion-snowleopard-leopard.merged-1.productscache
-rw-r--r-- 1 _softwareupdate _softwareupdate 2272365 Sep 7 15:48 index-lion-snowleopard-leopard.merged-1.sucatalog.apple
-rw-r--r-- 1 _softwareupdate _softwareupdate 2272365 Sep 7 15:48 index-lion-snowleopard-leopard.merged-1.sucatalog.apple.previous
-rw-r--r-- 1 _softwareupdate _softwareupdate 1800057 Sep 9 09:52 index-lion-snowleopard-leopard.merged-1.sucatalog.composite
-rw-r--r-- 1 _softwareupdate _softwareupdate 15276227 Sep 9 09:52 index-mountainlion-lion-snowleopard-leopard.merged-1.productscache
-rw-r--r-- 1 _softwareupdate _softwareupdate 1494207 Sep 7 15:48 index-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.apple
-rw-r--r-- 1 _softwareupdate _softwareupdate 1494207 Sep 7 15:48 index-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.apple.previous
-rw-r--r-- 1 _softwareupdate _softwareupdate 1172665 Sep 9 09:49 index-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.composite
The pointer doesn't exist.