cash positioning(prior day activities)

Hello

I create a new bank account,the following transactions are performed 

for testing of cash positioning.

2june2011 payment Rs 100

bank statment entered on 30june2011

2july2011 payment Rs 20

11july2011 payment Rs 70

Created new cash position worksheet and when i generate cash position

as of  date 11july2011,the following details shows:

Opening balance -100

prior day cash flow 0

receipt 0

payment -70

intra day activites 0

Ending balance -170

But it is not showing prior day balance while the transaction is 

created on 2njuly2011,why it is now showing in prior day cash flow?

what is intradays activites?minimun maximum target balance? on cash positioning