BleepingComputer.com: please help! partition removing problems!

Hello people of the forum, i'm 15 years old, (don't judge me.. well not yet)

i just got my new disc of ubuntu 9.04 in the mail today, so i was gonna dual boot it with vista on my laptop (no big deal)

ok so i got it dual booted, everthing went fine except ubuntu 9.04 wasn't working right, cpu was 100% the whole time, messed up screen resolution, and it was running at an unusable speed (idk what was wrong with it, and didn't feel like screwing up my computer... did anyway)

so i THOUGHT, i'd load back into vista, and remove the ubuntu partition (35 gigs from a 160 gig hard drive)..

so, i'm in vista, (working perfectly fine) i'm in the disk manager, and i removed my ubuntu partition (aparently i should have researched this first) after i removed it, i restarted my computer and i got an error that said "blah blah blah grub error 22"

so i did something wrong, so please, can someone help me get back into vista!? all my stuff's still there (well just my programs, luckily i put on my files on and external hard drive, for stuff just like this)

my recovery disc is a partition on my hard drive. so that doesn't work.

i have a hq/compaqu persario (more numbers here i forgot, it's the highest one)
2 gigs ram, navida graphics, amd processor

(no clue why ubuntu was slow, i don't have intel)


and i have a hacked xp disc, how do i use that to get back into vista??

is the installation disc the same things as a boot disc?

did i get this error because ubuntu was above vista on the boot list?

(should i post in the Linux forum?)

Seeing how you want to fix your Vista install, I will not comment on your hacked version of XP other than to say it is against forum rules
I have made a note of it and you will not get any assistance for that in the future

You need to fix your MBR:
http://support.microsoft.com/kb/927392