by/with

... posters, ... Express Ltd next May, ... a saw, ... mud, ... Blackwoo Publishing next week

by posters, with Express Ltd next May, by a saw, with mud, with Blackwell Publishing next week

by/with

1. with posters

2. by Express Ltd next May

3 / with a saw

4 / with mud

5 / by Blackwood Publishing next week

1. c плакатами

2. (скорее всего: поездом) Express Ltd в мае следующего года

3 / пилой (или: с пилой - по контексту)

4 / с грязью

5 / Blackwood издательством на следующей неделе