create view and add fields,sort criteria etc

step 1 : select group as ‘Date’ then Date:node,add it to the filter by clicking the add
step 2: set Date form type: as text,granularity as day,from
‘Date field(s):’ select the CCK field you want and select method ‘AND or OR’,click update
step 3:Here is the trick
Operator: as you like (i am selected ‘is less than or equal to(for avoid post dated pubblications)’.
Attention for default value:
put your default value in ‘Date default:’ (i am used ‘now’ for current date,other values as ‘now +1 day’).

and update it .Now you have a view filterd by CCK date field