The WordPress 2.3 beta tag cloud is XHTML Transitional not Strict. Also if you want to keep UTW then the permalinks /tag/sometag will not work; the /tag/ will go to the WordPress one and not the UTW version.
Hopefully someone will make a UTW like interface, presentation plugin that lets you use the built-in tag system but enjoy UTW’s tools and functions.
Comments by Jan Dembowski
New Life for old 3D Printers
"I'm a little late in replying but that print surface? It's..."
This is not a Gutenberg Review, It’s a Blog Post
"Oh, as someone who supports WordPress users in the forums I..."
This is not a Gutenberg Review, It’s a Blog Post
"That's fantastic. ;) The Classic Editor and at least one..."
This is not a Gutenberg Review, It’s a Blog Post
"The blockquote tag works in the HTML comments here if you..."
This is not a Gutenberg Review, It’s a Blog Post
"It's not about popular belief. And WordPress is 100%..."