May I suggest this revision to clarify the next section:
'Upon opening the event window, you'll see a map of the town. On the left hand side you have the festival. Towards the center, you'll see one of the town's factories. Click on this to start producing goods for use in the festival. Once the production is complete, they'll put the goods in containers ready for collection. Click on the ferry in the bottom left corner to send it to collect goods from the town, and deliver them to the festival. Once the ferry arrives back at the festival, click on it to collect the goods, and earn yourself some Shamrocks! '
Label the buildings, so that you don't need to describe where they are.
Upon opening the event window, you'll see a map of the town. To begin play, click on a factory (A) to start producing a batch goods. (Or, 'click on a factory and select the amt of goods you want it to produce.' This is my first read, and it is unclear whether we can chose how many goods to produce.) Once the production is complete, click on the ferry (B) to have it pick up the crates of goods (D) and deliver them to the festival (C). Once the ferry arrives back at the festival, click on it to unload the goods, and earn yourself some Shamrocks!