No scripts work for me

hey guys..i'm kinda new here and i've just downloaded SCAR v3.05 with SRL3.8....i tried running all the scripts from the pack...u noe the one containing flax picker..tree chopper etc.etc...and i keep gettin these errors for all the scripts

Line 274: [Error] (1968:11): Unknown identifier 'FixD' in script C:\Documents and Settings\shazwan\Desktop\srl\srl\core\Math.scar

Line 36: [Error] (36:1): Unknown identifier 'Sinearray' in script C:\Documents and Settings\shazwan\Desktop\srl\srl\core\Math.scar

i dunno wad i've done wrong...i've downloaded SRL..the latest version..and still wont work...sum1 pls help me!!

 

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