Thank you very much for your feedback.
In fact, there is a bug in the number of matches found. The number is not being refreshed when you submit your filter, its always the same from the moment you enter the issues page.
We will add this bug to our backlog.
The paging isn't there because you have a Max Rows parameter in the search filter. If you want to see all the results, you just have to increase the Max Rows parameter.
We have found this a better usability aproach for the backlog and issues pages of the Agile Network Projects, mainly because of the use of Ajax.