When I acquire pictures from SD card, it acquires

Most cameras don't have enough internal memory to take more than 1 or 2 pictures internally. Picture transfer is normally accomplished via usb cord. The process begins when you plug in your usb and power on the camera. You have to navigate between internal memory and SD card in windows explorer.

SD cards have a slide switch along one edge. The position farthest from the metal contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card.

Although it's not the newest device out there, an SD card of 4gb would be more then suitable for it, check the manual for more info about the limitations which your device has:
Panasonic DMC LZ5 Manual

Make sure you're using an SD card, 2GB and smaller. The DMC-LZ5 will not work with higher-capacity SDHC cards.

Although it's not the newest device out there, an SD card of 4gb would be more then suitable for it, check the manual for more info about the limitations which your device has:
Panasonic DMC LZ5 Manual

The only way is to use a separate card reader. When it opens on your computer, select the new pics and drag and drop them where you want them.

It seems that your SD card is corrupt. I had similar problem, that was resolved when using another SD card.

The manual for Panasonic DMCLZ5 [ date: 20060223 ]
http://dlc.panasonic-europe-service.com/EUDocs/GetDoc.aspx?did=140225&fmt=PDF&lang=en&src=3&uilang=nl-NL&model=DMCLZ5

When you are using a
SD Memory Card
•On this unit, you can use SD Memory
Cards of the following capacity (from 8 MB
to 2 GB).
The SD Memory
Card is equipped with a Write-Protect
switch E that can inhibit writing and
formatting a card. (When the switch is slid
to the [LOCK] side, it is not possible to
write or delete data on the card and
format it. When the switch is unlocked,
these functions become available.)

Had to take my SD card in for a system recovery.
Thanks

Unlike 35mm cameras that store images on film, Lumix® Digital Cameras store images on SD Memory Cards, which make sharing and storing your pictures easy and convenient. You simply insert an SD Memory Card into the camera, take pictures until the card is full, and then you can transfer the pictures onto a compatible PC. Once you saved all your pictures, you can erase the card and start all over again.