Thanks snowshifter for the information, I just visited getpaint site, the GUI looked immpressive and easy to use, and got the layer feature.
Yes, Gimp take some time to get use as the GUI is not so easy to use. It take me quite some time to learn it before I use on it.
There is a modification of GIMP, it worked like Photoshop. You can give it a try also.
I haven't try both getpaint and gimpshop, base on the screenshot, I believe getpaint is more easy to use.
Just another choice for you. Thanks for the freeware contributors, now we hava a lot of choice of professional freeware.
http://www.gimpshop.net/
"GIMPshop is a modification of the free/open source GNU Image Manipulation Program (GIMP), intended to replicate the feel of Adobe Photoshop. Its primary purpose is to make users of Photoshop feel comfortable using GIMP.
It shares all GIMP's advantages, including the long feature list and customisability, while addressing some common criticisms regarding the program's interface: GIMPshop modifies the menu structure to closely match Photoshop's, adjusts the program's terminology to match Adobe's, and, in the Windows version, uses a plugin called 'Deweirdifier' to combine the application's numerous windows in a similar manner to the MDI system used by most Windows graphics packages. While GIMPshop does not support Photoshop plugins, all GIMP's own plugins, filters, brushes, etc. remain available.
Due to the changes to the interface, many Photoshop tutorials can be followed in GIMPshop unchanged, and most others can be adapted for GIMPshop users with minimal effort. "