from what i understand aboout cricket they use different prl around everywhere in the country. you would have to find a friend that has a cricket phone near you and grab the prl of their phone and write it to yours.
Load QPST, under Start Clients menu, select Service Programming.
Click Read from Phone and enter MSL (000000). *The MSL or SPC number will be asked you can find you SPC by using your mied and converting it here, http://www.meidconverter.net/
Then Save to file. This will save a .qcn and .rl0 file.
In QPST, under Start Clients menu, select RL Editor.
In RL Editor, load your .rl0 file. Go to File, Save As..., make sure type is *.prl and enter a file name.
how to write it to phone: