Regarding Longtext

hai

im trying to built the scenario for loading long text by using "Eugene Weblog". But i got one error like below

while creating update rules for charateristic(A),which contains attributes-B and attribute-C.

i need to select the 'SourceField' for attribute-B and attribute-C.(SourceField is A).But im not getting sourcefield for attribute-B,attribute-C.

so pls tell me

what i have to do

txs

rizwan