Here is a tutorial of how you can install them.....
INSTALLATION
ADBOARDS
1.Open Big Editor(Latest One)
2.Go to this location"stadiums\stadium_name\models\stadium_name.model/signage__.dds"
3."stadium_name" refers have the name of stadium,such as sydney,brimingham,etc....... with which you want to replace those adboards.
4.You can replace it with signage 1,2,3 or 4,or in all signage,according to your choice.
STUMP
1.Open Big Editor(Latest One)
2.Open location-"AC09/gdata/gdata.wad/global/global.texpack/stump.dds"
3.Replace it with the stumps provided.
ROPE
1.Open Big Editor(Latest One)
2.Open location-"AC09/stadiums/sharedtextures/signage/unlicensed/signage.texpack/rope_signage.dds"(You can even replace it with licensed)
3.Replace it with the rope provided.
PITCHAD
1.Open Big Editor(Latest One)
2.Open the location - "AC09/cricketgrounds/type__/any_wear/layer02.model/groundsign_01.dds"
3.So far only types of 3 stadiums have been found,so you need to replace one of the 3 types which have bben found.
4.Wear means "pitch_wear",its according to your choice to replace those wears.
Hope it helps, AC 2009 was my favourite game btw
How do i replace stadium textures like pitch ad rope signage and stump ? I can't find them in big editor