I Can't Use 'Apt-get' And 'Aptitude' In Ubuntu - HELP!!!

Ok, I installed 'localepurge' on my ubuntu 8.04 and as a consequence, I can't use 'aptitude' or 'apt-get' to install and remove apps. Here are the following error messages I get. What must I do to correct the problem?

x@xx:~$ sudo apt-get remove wine
[sudo] password for x:
E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

x@xx:~$ sudo aptitude remove wine
E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Building tag database... Done
E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?