Hi All, I have a problem and would like to find support

I am hosting Egjug.org in shared hosting. The hosting server send me warining that I am using high resources from the server and must check scripts I am using.

I don't know what cause a problem in my host, the current shared host is hosting the following:

1- Drupal 4.6.3 2- Drupal 4.7 3- 7 Wordpress installation with 7 DB 4- DotProject

I want to know how I can reduce the resource consuming!