- Always use the latest version of QlikView. The Ajax-Plugin alignment is getting better and better.
- In QV Desktop, often check your layout with the WebView button (Design toolbar, last button to the right)
Object alignment in Ajax-mode is a bit different from the plugin. You'll have to space your objects a little wider. For example, a horizontal list box with a fixed number of text entries (like the month names in a year) can best be spaced in WebView mode, because the plugin will adjust to any width. But the browser version won't. Also keep in mind that fonts may be different.
There is no need to download any Ajax plugin.
Use the Web View only to check / finetune your layout. Its not even possible to use the full scale of development if you are within web view. So develop your app as usual and when its about placing the objects: as Peter said: just use more spacing between 2 objects (e.g. strg+shift and arrow do move an object by 10pts per step) and crosscheck it with the webview afterwards.