if your ps2 is modded there is a ppf patch called jayz editors choice for we10 its has everything in there in terms of editing emblems logos sponsors.
you can also got to www.sakax2.com for all logos sponsors it will take a while to edit you'll have to do it you'r self this is a good site though hope this helps.
at the bottom of the page in this section there is a thread called patch kits06/07 for we10 in this thread there is a link to some edited kits might be useful.