Sony Ericsson Xperia X10 — android market

I am not able to use any thing from android market

What country are you based in? The Android Market is only available in the following countries at the moment.

If your country is not on the list, you can use our own AndroidPIT App Center to access a wide selection of free and paid apps.

I am in India . we have purchase 2 Sony experts x 10i one person is able to used market.
I am unable to use service center peoples has asked. me to upgrade android.i have done so but not able to use markets
. if I have on wifi through wifi I am able to used . through gprs I. can used all apps except markets . also I am using android pit but for few software android pit is directing me to market . please help me my cell no 9960698593

Settings - Programs - Manage Programs (or whatever it's called) - Find and select the Market app - Clear cache and uninstall updates.
Reboot phone and let the app rebuild itself and you should be ok.
Also somewhere in the X10's setup you can select 'allow third party apps' or something.
Good luck.

in I have do above. process but in manage application there no market app in that . so how should I reinstall market
I have contacted. Sony
they are help less

ive got the pulse mini would it take off my credit or do it another way?

Your X10 does not come with Market pre installed?

http://www.google.com/support/forum/p/Android+Market/thread?tid=378157a41cd6df08&hl=en

https://market.android.com/

Try it, or do a search on Google or your favourite search engine.
You could in the meantime consider SlideMe.org, handango.com or 1mobile.com.