Hello, any one can help me. recently my client want like this tags page : http://en.wordpress.com/tags/ if its possible plz let me know here.
This URL structure http://en.wordpress.com/tags/ is a combination of custom permalinks and a subdomain. The "en" part is a subdomain. The "tags" part is just structuring your permalinks to show tags instead of categories: http://codex.wordpress.org/Using_Permalinks#Structure_Tags
Create a custom template, replace The Loop with the_tags( ). Then create a Page from WordPress dashboard and assign the new page template. Easy