Not to worry, we are here to help as best we can.
The TI (texas instrument) chipset helps to ensure problem free Firewire.
Other chipsets in a firewire card can be questionable and may or may not work with your devices.
Not sure how you find out if yours has a TI Chipset or not, do you know the card manufacturer?
Here is a post where you can check the dips switch settings against yours
viewtopic.php?p=39332#p39332
The above is a very good topic and might be worth looking at the whole thing, it is 7 pages long.