Help removing aliasing and weird looking lines in avisynth_mt?

I have a source with some pretty bad line problems. This is the best script I could come up with. Can anybody help me get better results?
SetMtMode(5,10)
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\DGDecode.dll")
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\TIVTC.dll")
import("C:\Program Files (x86)\AviSynth 2.5\plugins\AAA.avs")
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\RemoveGrainS.dll")
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\FluxSmooth.dll")
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\aWarpSharp.dll")

DGDecode_mpeg2source("C:\Users\Ryan\Desktop\VTS_01 _1.d2v", cpu=6)
SetMtMode(2)
TFM()
TDecimate(Mode=1)
AAA().AssumeFrameBased()
RemoveGrain(mode=1)
FluxSmooth_FluxSmoothST()
aWarpSharp(depth=2, blurlevel=2)
Crop(8, 4, -2, -0)
Spline36Resize(720, 544)