function not working, is something wrong?

[Selyp]

Not sure about the SetPropObjectStuckState, but for the Particle System you have to specify the name of the particle system file you want to create

example :
CreateParticleSystemAtEntity ("oilused", "ps_steam.ps" "area_leveroil", false);

Oilused is the name of the particle system being created, ps_steam.ps is the name of the file for the particle system (whatever file you want to use) and area_leveroil is the name of the entity at which you are creating it.