well get one then... doesn't matter which...the problems(if you have any) will still be there when you do...or not.
And the first thing he SHOULD do is unplug all the USB devices you have, and reintroduce them individually until a problem arises..or all things run correctly.
The only way things will run correctly are if the OS is up to date(yrs should be on SP4) and the equipment is BACKWARDS compatible...because you are using a REALLY OLD version of Windows that manufacturers don't care about much...
The DLink hub "should" work*... I wouldn't be surprised if it didn't...I would be more doubtful about the Kensington hub...but then I would buy neither...and especially not from Amazon...however you want to buy from Amazon & you'll get the one you "fancy"...so good luck.
*in the blurb it mentions 2000...the Kensington doesn't.
e2a::: things are more likely to work if you use the most up to date drivers....especially if the discs you are provided with don't "apparently" work.