Resizing ubuntu 12.04 partition

[aasalem]

installed Ubuntu 12.04 on Vista SP2 from external drive.
Output of:
 fdisk -l at Ubuntu terminal as follow:

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: "omitted"

   Device ---Boot ---     Start ---        End ---     Blocks---   Id---  System
/dev/sda1 ---  * ---       2048---   312578047 ---  156288000---    7---  HPFS/NTFS/exFAT

parted -l
 ------------------------------------------------------------------------/
: ATA Hitachi HTS54251 (scsi) Disk /dev/sda: 160GB Sector size (logical/physical): 512B/512B Partition Table: msdos

Number Start End Size Type File system Flags 1 1049kB 160GB 160GB primary ntfs boot
 ---------------------------------------------------------------------/

Now I do not see windows.

Can Ubuntu be resized (increased) via GParted?

It looks like Ubuntu instillation created a logical partition within the original partition both of them boot okay.