Hi,
When you go to move the apps, is there an option to do so or is it ''greyed'' out, (move to SD Card)?
If there is no option to do so or it is greyed out, it is because the developer of the app has not set the "permission" flag which enables it to be moved. This could either be by omission or design.
Also if the apps that you wish to move came ''pre-loaded'' with the tablet, they are part of the system and can only be moved if you ''root'' the tablet.