since installing a number of extensions have disappeared

ok so I installed mobile joomla & was happy with the results....untill I started looking at my original site a bit closer.

My RSForm Pro form has disappeared off the site
My VIPAmazon Module has disappeared
My BT Content slider modules have all disappeared

can anyone help please.. or do i just need to uninstall the extension.

PS I tried disabling the Mobile Joomla plugins but it did not help