Unable to use GDS due to change in login name?

[yogishaj]

i was using google desktop search on my office machine using

login : username1
domain : x

now my login has been changed to

login : username2
domain(domain is same)

and my old login username1 is deleted and now i am able to use username2 only.

I cannot use google desktop due to the below reasons

Now i am not able use google deskop using username2 because it is giving the error "can only used by the login who has installed".

or uninstall using username2 because it is telling "the login who installed can only uninstall it".

and cannot install a new google desktop search
because it is giving message that "to install new one the old one should be uninstalled "

Please give me suggestion how to usinstall the old google desktop search using login as username2 which was installed on my machine using login as username1