Philip, I don't think your problem lays with your hosting company, it's caused by you trying to mix a WebPlus site and a Xara site together in a bunch of bastards.

Keep the two seperate, don't try to combine them! Have a WebPlus site (as you have at present) and a totally independent Xara created site that's an ongoing project.

The main cause of the issue is that you're trying to link your old WebPlus Site Map to your new Xara created pages. I recommend you don't do this.

Create a new navigation system with your Xara pages, don't try to link it to your old WebPlus site map.

Are you aware that you can copy your websites pages url in a browser and open a new website document in Xara and File / 'Import from Web Address' then paste in the copied url ?

The text normally comes in like a dogs dinner so delete it. You should be able to select that text from WebPlus and paste it. This is a quicker way to create Xara web pages.