The Advertiser has opened its archives to see what was making the news this week 25, 50 and 100 years ago. 25 years ago – August 20, 1999 ABOVE: Children at the Early Learning Preschool Nursery, Balderton, had the chance to sit in a fire engine as part of an emergency services topic week. Firefighter Paul Allen is pictured helping Jack Dent (3) and Lois Groden (4) to try on fire helmets. * Newark MP Fiona Jones has called for a transformation of the market place in a bid to create a continental-style heart for the town. Speaking at an open air meeting with traders and retailers, she criticised…