i have an old dsl modem and i was wondering if buying a new 1 would help increase my dsl speeds
No it wouldn't you would have to go through you're ISP and see if they offer faster speeds.
You should call them then you will have to give them the model of you're currnet modem and they will tell you if you need to upgrade it.
Best of Luck
thx ill do that
also is there any changes i can do that will help increase my internet speed