[OpenLayers-Users] problems with projection

[GregM]

I have WMS layer overlayed on OL WMS, and it looks ok.
After changing base layer to GoogleMaps it looks nearly ok. Very small shift
is almost visible only (scale 1:28M). But after zooming in to scales < 14M
all layers are aligned exactly already. Zooming out to scales > 14M makes
layers unaligned more and more.

Second case:
After changing WMS layer to WMS.Untiled:
behaviour is the same as in previous case but layers aligns under 1M scale.
At scale 1:14M there is shift by whole country and overlay is stretched
vertically very much.
Additionaly, overlay do not show always. Sometimes dragging makes it show on
map.


Third case:
After changing to Mapserver layer:
-On OL WMS everything ok
-On GoogleMaps overlay is not stretched (looks like unprojected data) and
shifted north by 2 countries (scale 1:28M)
-zooming in to scale <50K makes layers almost aligned
-while zooming in, sometimes there are no tiles at the bottom of the map.

Fourth case:
Mapserver.Untiled:
-On OL WMS everything ok
-On GoogleMaps overlay is not stretched (looks like unprojected data) and
shifted north by 1/2 countries (scale 1:28M)
- zooming in has no effect on layers align




How can I get OL 2.5 ? 
Link http://openlayers.org/download/OpenLayers-2.5-rc1.zip  and others on
2.5 release page do not work.


Fragment of my sources:
...
var bifcountries = new OpenLayers.Layer.MapServer( "BIF-countries",
                "localhost://cgi-bin/mapserv?map=bifm-dev.map",
                 {layers: "bifcountries",
                 transparent: "true", format: "image/png"}, { visibility:
true, isBaseLayer: false, buffer:0, opacity: 0.8});

...

Mapfile:
LAYER
    NAME bifcountries
    TYPE polygon
    STATUS DEFAULT
    DATA 'bif_countries'
    TEMPLATE 'templates/pl_wgs84.html'
    HEADER 'templates/pl_wgs84_header.html'
    FOOTER 'templates/pl_wgs84_footer.html'
    LABELITEM 'NAME'
    CLASS 
      STYLE 
         OUTLINECOLOR 110 110 110
         COLOR 210 243 207
      END #STYLE
      LABEL 
        SIZE medium
        OUTLINECOLOR 79 79 79	
        COLOR 220 220 220 
        ANGLE 0
        BUFFER 1
        PARTIALS OFF
      END 
     END #CLASS
END



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