You can try installing the drivers from other systems that are related to yours, like other Inspiron laptops. they usually use similar hardware across the whole range, pretty sure you'll find something that works for your system.
can any one help me with this please and thank you
My name is Tanmoy and I work for the Social Media and Community Team at Dell.
Thank you for your query of how to install the drivers for the sound card as you are not getting any sound card drivers., As a aprt of dell, it is my responsibility to help you to get your issue fixed asap and also i would give u the direct link to get to the sound driver for your inspiron 1300 which is as follows:
and then you need to select the operating system installed in your computer and then click on audio option and then you would get the driver for your sound card., For any further help, you can reply to this post, would be eagerly waiting for more queries from your end,.