i have MOSS enterprise on my company and yet i couldnt use the forms services features
after some reasearch i found some post by David Szabo that should me how to force activate and deactivate the Forms Services Features
PLEASE NOTE: This is provided "AS IS" with no warranties, and confers no rights.
first log on to the C:\Program Files\Common Files\Microsoft Shared\web
server extensions\12\BIN folder, then run the commands from there
(SDSADM.EXE lives in this folder)
Run the following commands to force deactivating and activating the Forms Services feature:
stsadm -o deactivatefeature -filename IPFSSiteFeatures\feature.xml -force -url %SITE_COLLECTION_URL%
stsadm -o deactivatefeature -filename IPFSWebFeatures\feature.xml -force -url %SITE_COLLECTION_URL%
STSADM.EXE -o activatefeature -filename IPFSSiteFeatures\feature.xml -url %Sitecollection_URL% -force
STSADM.EXE -o activatefeature -filename IPFSWebFeatures\feature.xml -url %sitecollection_URL% -force
** NOTE: The "%Sitecollection_URL%" is a place holder that would be replaced with your site collection URL, such as: http://sharepoint/sites/YourSiteCollection