I have to double check but I think MS disabled autorun in service pack 3. But just in case lets try a few things
Click Start, and then click Run.
Type regedit, and then click OK.
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\CDRom
Double-click Autorun and see whether a zero or a one is displayed in the Value data box.
If the value for Autorun is 0, right-click Autorun, and then click Modify. In the Value data box, type 1, and then click OK.
Locate and then click the following subkey:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Double-click NoDriveTypeAutoRun to see its value. If the value is 0xb5, the AutoRun feature for CD-ROMs is turned off. To turn on the AutoRun feature, follow these steps:
Right-click NoDriveTypeAutoRun.
Click Modify.
In the Value data box, type 91.
Select Hexadecimal, and then click OK.
Exit Registry Editor.
Shane