downloadbuilder - bung zip file

downloading custom theme from this url ....

http://jqueryui.com/download/?themeParams=%3FffDefault%3DVerdana%252CArial%252Csans-serif%26fwDefault%3Dnormal%26fsDefault%3D1.1em%26cornerRadius%3D0px%26bgColorHeader%3Ddd5024%26bgTextureHeader%3D04_highlight_hard.png%26bgImgOpacityHeader%3D35%26borderColorHeader%3Daaaaaa%26fcHeader%3D222222%26iconColorHeader%3Dffffff%26bgColorContent%3Dffffff%26bgTextureContent%3D01_flat.png%26bgImgOpacityContent%3D75%26borderColorContent%3Daaaaaa%26fcContent%3D222222%26iconColorContent%3D222222%26bgColorDefault%3Ddd5024%26bgTextureDefault%3D01_flat.png%26bgImgOpacityDefault%3D75%26borderColorDefault%3Dfaf5f5%26fcDefault%3Dfaf5f5%26iconColorDefault%3Dffffff%26bgColorHover%3Ddd4b24%26bgTextureHover%3D01_flat.png%26bgImgOpacityHover%3D75%26borderColorHover%3Dfaf5f5%26fcHover%3D2c2121%26iconColorHover%3D454545%26bgColorActive%3Dffffff%26bgTextureActive%3D02_glass.png%26bgImgOpacityActive%3D65%26borderColorActive%3Daaaaaa%26fcActive%3D212121%26iconColorActive%3D454545%26bgColorHighlight%3Dfbf9ee%26bgTextureHighlight%3D02_glass.png%26bgImgOpacityHighlight%3D55%26borderColorHighlight%3Dfcefa1%26fcHighlight%3D363636%26iconColorHighlight%3D2e83ff%26bgColorError%3Dfef1ec%26bgTextureError%3D05_inset_soft.png%26bgImgOpacityError%3D95%26borderColorError%3Dcd0a0a%26fcError%3Dcd0a0a%26iconColorError%3Dcd0a0a%26bgColorOverlay%3D7a7a7a%26bgTextureOverlay%3D09_dots_small.png%26bgImgOpacityOverlay%3D80%26opacityOverlay%3D50%26bgColorShadow%3Daaaaaa%26bgTextureShadow%3D01_flat.png%26bgImgOpacityShadow%3D0%26opacityShadow%3D80%26thicknessShadow%3D8px%26offsetTopShadow%3D-8px%26offsetLeftShadow%3D-8px%26cornerRadiusShadow%3D5px

without changing any options, i get sent to a blank page (nothing happens), hitting refresh and re-posting form data, i get the download which is broke....

[/tmp/jquery-ui-1.7.1.custom-1.zip]
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
zipinfo:  cannot find zipfile directory in one of /tmp/jquery-ui-1.7.1.custom-1.zip or
          /tmp/jquery-ui-1.7.1.custom-1.zip.zip, and cannot find /tmp/jquery-ui-1.7.1.custom-1.zip.ZIP, period.