internet explorer + microsoft visual C+ error

hello

**please help!!**

if you can help me, i would be so grateful asi am not very computer savvy.
i have just got a new computer, fresh out the box, but i am unable to link it
to my router.
everytime i click onto internet explorer and type an address i get a pop up
stating:

"MICROSOFT VISUAL C+ + RUNTIME LIBRARY"
* runtime error program c:\programfiles\internetexlorer\explore.exe
This application has requested the runtime to terminate it in an unusual
way. please contact the applications support team for more information.

i have contacted my isp and they say it is a vista software problem. i am at
my wits end as i don't know how to get round this. i've tried the vista start
up wizard and then i get an error 815 message. i am now typing this on my
ancient computer via my old modem and am near tears as the shop i bought the
new computer from won't help me. i don't know what on earth to do.



i am