There shouldn't be any problems with the device. Windows 7 is pretty good at detecting and installing older devices.
Drivers are specific to the hardware in the computer. Without knowing what hardware is in your computer, we cannot know exactly which drivers will be used.
The only difference comes at when you are getting the drivers. While installing 32-bit drivers to a 64-bit computer, the installation might be successful. However, when installing 64-bit drivers to a 32-bit computer, the drivers will not install. But it is good to get drivers that match your computer bit system.
If you are referring to the Jetway N68M motherboard, look at the related link for the drivers for the Via audio drivers for Windows 8.
It is not possible to install Windows Media Player 10 on Windows 98. The last version that will work is version 9.
Yes, it's possible if you have a windows xp installaiotn disk as well as drivers for windows xp. Drivers you can check on the Dell website.
No. It is entirely possible to install and run Ubuntu on a computer without ever having run Windows on it.
Try to find drivers for your IPod ans install it.
No, you do not have. There are some computer which can use vista only (dell and others). But you still can find drivers for such computers on different websites and install, for instance, linux.
You could put the installation file on the external HDD to install it on another computer but then to install it, it would have to be on a local HDD.
You can install it from a flash drive or through network.
If you have windows already in your computer then the window that you think is asking to install the windows might be of installing the updates or other functions about it. and if it is only asking to install windows then it is possible that might be virus messages to do not press or anything once run a system scan with an anti virus software.
Use windows update, it will automatically locate missing drivers (sometimes it does not work).