how to trial balance or generated?

[nextwebzone]

first time i install the whole software. i read the manual and complete Company Preferences, System Parameters, currency, Sales GL Interface Postings,
COGS GL Interface Postings setup etc. then i create the inventory, supplier, customer and also purchase, sale all are done but in the trial balance and balance sheet are all 0000.

i also login as a weberp demo company. i found there item, purchase, supplier, customer and all other information. but the trial balance and balance sheet are 0000. here i attached a pdf report file.

thanks and pls tell me what i m doing wrong.