When you say you "upgraded" do you mean that you did a clean install or did you install the XP over the 98? If you did the latter, there may be some conflicts in the drivers XP is using.
 
The screen being shrunk is a function of your video driver. What kind of video card do you have?
 
No sound is again a function of the audio driver. Is yours computer with onboard sound or do you have a sound card. If so what is the card?
 
With some of this information we should be able to sort things out.
 
 

When upgrading from older OS to a new one, the drivers for your hardware will also need up[censored] as new hardware is not always provided in XP. Download driver from manufacturer's web site.
 

the soundcard is sound blaster 16 plug and play (wdm) and the driver is ctlsb16.sys
 
video is NVIDIA RIVA TNT2/TNT 2 PRO and the driver is NV4_mini.sys
 

More than likely these two components are compatible with XP, it is just that the drivers you are using may be 98's. With the Nvidia card (which is old) you can go two ways. You can go to Nvidia itself: http://www.nvidia.com/content/drivers/drivers.asp and choose the driver appropriate to your card, or you can delete your present drivers, reboot, and let Microsoft find your card as new hardware and have it find the appropriate driver. Nvidia drivers always have to be uninstalled and you must always reboot before installing new ones. (Even then they have been known to leave fragments).
 
For the Creative soundblaster card, you can go here: http://www.creative.com/support/ to find the drivers you need. Or, you can delete the drivers and let Microsoft install the appropriate ones for you. To get rid of those drivers means that you will have to go to the system manager (Right click on the My Computer icon, choose Properties, then choose the Hardware tab, then click on the Device Manager button, then go down to "Sound, video, and game controllers, click on the "+" go to the sound card, right click and bring up properties where you can remove the drivers. Sound cards also have their peculiarities but generally, the Creative soundcard drivers do a pretty good job or uninstalling and reinstalling without much problem, it is just that Creative adds so much of software sometimes that you really will never use.

i fixed the screen, but still no sounds, i looked for the updated driver but it said it had none, but i dont think im doing it right. here is everything that comes up on the sound card
creative soundblaster 16 plug and play (wdm)
also says location pci to isa bridge (isa mode)
 
also what are audio codecs and legacy audio drivers, would that make a difference?
 

Try this page for your Sounblaster Card: http://us.creative.com/support/downloads/

it said it had no new drivers

I am not sure I understand what you mean. Go to this address: http://us.creative.com/welcome.asp Click on the word support. Then click on downloads. Then in the three boxes below choose Soundblaster, then 16bit, then Soundblaster 16PCI (if that is what it is.) Click on Go. This will then take you to a page where you can download both the the driver which was last updated Dec 2002 and the manual. When you get the driver, run it from where you saved it and it should install the XP version. Since you also can get the manual, you can use the software to tweak the card.

ive been doing that, i go to soundblaster, 16 bit, sound blaster 16, i hit go and it has no updates

My mistake. For some reason I had it in my head that this was a PCI 16 card. It would seem that Soundblaster has no XP drivers for that card apparently.

so theres no fix?

There just doesn't seem to be a driver that was developed for this card after ME. Someone out there may have a re-engineered driver, but there would always be a stability issue. Finding a new inexpensive sound card that continues to be supported by Creative is easier to find. The soundblaster 5 card is years old and still is supported and very inexpensive.