moving channels

ok i have a problem.. i have blank channel spaces in between my other channels.. i did remove some.. will those spaces eventually get used up or can i rearrange the channels so all the blank ones are at the end?
im an extreme noob at this..

Have you tried to move one of your still existing channels to the blank spaces? For moving them press A+B in the wiimote.

awesome.. thank you ! i didnt know that