KVCD: couldn't open the avs in media player?
 

here's my problem...ive been using avisynth 2.0 fine with no problems at all using tok for prediction and the results have been fair but not great.So i thought i use avisynth 2.5 with the latest script this is where it all went wrong ,first i couldn't open the avs in media player all i got was audio,so i intalled new codecs from the download link page and hey now i have video and audio i thought great it should all work now! No it didn't work open the script in tok and tok crashes open in tmpeg and i get no video just a black screen the same happens when i open it in acp just black screen when it opens in tmpeg i'm totally confused by this, i really want to use the latest script with avisynth 2.5 because i beleive it will give me a better quality encode any ideas guys thanks here's the script im using....
## DLL Section ##
#
LoadPlugin("C:\Filters25\MPEG2Dec3.dll")
LoadPlugin("C:\Filters25\GripFit_YV12.dll")
LoadPlugin("C:\Filters25\STMedianFilter.dll")
LoadPlugin("C:\Filters25\asharp.dll")
LoadPlugin("C:\Filters25\unfilter.dll")
LoadPlugin("C:\Filters25\undot.dll")
#
####

## Defined Variables and Constants ##
#
MaxTreshold = 1.50
nf = 0 # Current frame.
#
####

## Main section and static filters ###
#
AviSource("F:\New Folder\*************.avi")
#
undot()
Limiter()
asharp(1, 4)
GripCrop(352, 288, source_anamorphic=false)
GripSize(resizer="BicubicResize")
STMedianFilter(3, 3, 1, 1 )
MergeChroma(blur(MaxTreshold))
MergeLuma(blur(0.1))
#
#

## Linear Motion Adaptive Filtering ##
#
# ( Portions from AviSynth's manual ) - This will apply temporalsoften to
# very static scenes, and apply variable blur on moving scenes.
# We also assign a variable - and this is why a line break is inserted:

SwitchThreshold = (Width<=352) ? 4 : (Width<=480) ? 3 : 2
ScriptClip("nf = YDifferenceToNext()"+chr(13)+ "nf >= SwitchThreshold ? \
unfilter( -(fmin(round(nf)*2, 100)), -(fmin(round(nf)*2, 100)) ) : \
TemporalSoften( fmin( round(2/nf), 6), round(1/nf) , round(3/nf) , 1, 1) ")

#
#
#

GripBorders()

Limiter()

#
#
## Functions ###

function fmin( int f1, int f2) {
return ( f1<f2 ) ? f1 : f2
}

#
####