Module is ignorning SetItemDimension, as well as %module_path

I'm trying to model my menus after one of the example ones in the demo. I've managed to get most of my customizations to take, but I've encountered the following problems.

1. The module doesn't actually use %module_path as specified. I've had to hard-code my image paths. If it's of any use to you, I have the module installed in sites/all/modules
2. For some reason the module is ignoring the SetItemDimension parameter. No matter what I put in, the menu items remain bulbous blocks, rather than the slim rectangles I'm aiming for. :) You can see what I mean by visiting ElectricTeaParty.net

Here's my list of customizations, in case it's of any use:

SetExpandIcon(true,'','')
SetPosition('relative',0,0)
SetCorrection(-19, -150)
_pop.SetCorrection(-12, -150)
SetCellSpacing(0)
SetItemDimension(150,20)
SetBackground('navy','','','')
SetFont('verdana,tahoma,arial','10pt')
SetItemText('navy','left','bold','','nowrap')
SetItemBackground('#66CCFF','/files/but.png','repeat-x','')
SetItemBorder(1,'#66CCFF','solid')
SetItemTextHL('navy','left','bold','underline','nowrap')
SetItemBackgroundHL('#66CCFF','/files/but.png','repeat-x','')
SetItemBorderHL(1,'navy','solid')
SetItemTextClick('white','left','bold','','nowrap')
SetItemBackgroundClick('#66CCFF','/files/but1.png','repeat-x','')
SetItemBorderClick(1,'navy','solid')
SetBorder(1,'navy','solid')
_pop.SetItemDimension(150,20)
_pop.SetPaddings(0)
_pop.SetBackground('navy','','','')
_pop.SetExpandIcon(true,'','')
_pop.SetFont('tahoma,verdana,arial','10pt')
_pop.SetShadow(true,'#B0B0B0',5)
_pop.SetDelay(500)
_pop.SetItemBorder(1,'#66CCFF','solid')
_pop.SetItemBorderHL(1,'navy','solid')
_pop.SetItemPaddings(0)
_pop.SetItemPaddingsHL(0)
_pop.SetItemText('navy','left','bold','','nowrap')
_pop.SetItemTextHL('white','left','bold','','nowrap')
_pop.SetItemBackground('#66CCFF','/files/but.png','repeat-x','')
_pop.SetItemBackgroundHL('#66CCFF','/files/but1.png','repeat-x','')