sharper solution, but works:
1.) move the d3dx9_33.dll file to the san andreas directory http://misc.opencoding.net/mta/d3dx9_33.zip
2.) install Multi Theft Auto: Race Mod 1.1.1 http://grandtheftauto.filefront.com/fil ... V111;82673
3.) and then install Multi Theft Auto: Race Mod 1.1.2 http://center.mtasa.com/race.html