WordPress.org

How to run a cronjob?

Ask your webhost how to set up a get call using wget or curl

I have set up the cronjob but the stats table on the plugin page remains empty.

If you have object caching such as W3 total cache, the statistics cannot be read.
A help topic about this is placed on the support forums. Note that the script is crawling your XML file (check your webhosts access log), but you cannot see the statistics.

I have a lot of questions and I want support where can I go?

The support forums over here, drop me a tweet to notify me of your support topic over here.
I always check my tweets, so mention my name with @ramonfincken and your problem.