UPDATE 1-De La Rue Q4 trading in line with expectations

* Q4 trading in line with expectations

* Solid platform for year ahead

* Sterling exchange rate to benefit this year

LONDON, March 24 (Reuters) - Britain's De La Rue (DLAR.L), the world's largest non-government printer of banknotes, said on Tuesday that fourth quarter trading was in line with expectations and its order book remained strong.

The group, which prints 150 national currencies as well as passports and official documents, said it would benefit from good visibility on future orders in its currency division, as well as a beneficial sterling exchange rate, in 2009.

"The strong currency order book, together with the anticipated progressive benefit throughout 2009/10 from the current sterling exchange rate... provides a solid platform for the year ahead," it said in a statement on Tuesday.

Trading in its security products, identity systems and cash processing division was also in line with expectations and the order book in each area was strong, De La Rue said.

Operating cashflow, however, had seen a "significant" year-on-year reduction in advance payments during the period to March 28, 2009. Full-year results are expected on May 20.

(Reporting by Nick Vinocur; Editing by Matt Scuffham)