I have a Z730 Kodak Easy Share. I was told by a

You need to buy a 2GB or less standard SD card, as your camera was manufactured well before the 4GB SDHC format card came out (look on your card, I'm guessing that's what you purchased). Sorry, but your camera cannot work with a SDHC card, only SD. 2GB SD cards are relatively inexpensive these days, and can be found on Amazon if your local store no longer carries them.

Here's the page from the user guide telling how to copy pictures from the internal memory to the memory card:
http://resources.kodak.com/support/shtml/en/manuals/urg00402/urg00402c3s11.shtml

If the Camera is new or the SD Card is new then you don't have much problem,
use the installation CD that comes with the camera to install it driver on a computer, so can use the USB cord to explore the camera. on the computer, try to locate the SD Card and format it. then you can use the camera again.
If you have files on the digital camera then i am afraid you might have connected the camera earlier with a virus infected device. there is no choice but to fellow my step either to scan it with computer or better still format it with computer.
Hope to know the outcome!!

You don't. The Z730 works with MMC and SD cards, not with SDHC cards. While SDHC cards will fit into the slot, they are electronically incompatible. You need to use cards 2GB and smaller.

that is the most problem of kodak battery once you leave the battery inside of your camer awithout using for a long time. the battery life become less or easily damage.

It is not possible to email directly from the camera.

If you're experiencing emailing difficulties directly from the Easy Share Software:

Please do a Clean Install on the software:
Please follow the instructions:

1. Uninstall Easy Share software:
2. Select Start > Settings > Control Panel > Add / Remove Programs.
   For Windows XP operating systems, select Start > Control Panel > Add / Remove Programs.
3. Select Kodak Easy Share software.
4. Select Remove (or select Change, and then select Remove).
5. Run the Clear utility:
6. Visit the CLEAR Utility for Kodak Easy Share software Web page at www.kodak.com/go/clear
7. Click the Download button, and then follow the on-screen prompts.
8. After restarting your computer, visit the Kodak Easy Share software Web page at www.kodak.com/go/easysharesw and install the latest version of Easy Share software.

VERY COMMON WITH EASY SHARE. There are only a couple things you can really do. FIrst, try removing the memory card and try it. Than if that dosen't work. Try holding power button while gently wiggleing the zoom.

Set the camera's image storage location to internal memory, then select Copy>> from the playback menu.

It's in the "Copying pictures and videos" section under "Reviewing pictures and videos" in the manual.

I have this camera and it came in a package with Series 3 Printer Dock. You can also check the Kodak website and they have a compatability chart.

Not sure if this will help, but you might try removing the batteries from camera, then see if it responds on the dock, if so it is most likely bad battery. That battery should be easy enough to find at locally. You might wanna try the Interactive Troubleshooter on Kodak's site. http://www.kodak.com/global/en/service/products/ekn030483.jhtml?pq-path=6861