Hi YC...
Does the event sender is running? But I suspect that it is not configured to send data to integration server because none of the replication have gone through till date.
Please setup the event sender utility from the following system menu:
Start-> All program -> Integration solution for sap business one -> SAP Business one event sender -> setup
During setup process you will see a screen where you are asked to check the checkbox for each company from where you want to send events to Business one integration server.
Once setup is successful then try to replicate one BP or item master data.
Regards
Kennedy