Pc cant find the Imac for tranfers.. any suggestions ??

What is your problem? Be specific.

First off the PC doesn't Find the iMac. The iMac finds the PC.

Second you REALLY Do Not want to use Migration Assistant. Just copy over your personal files from the PC to the Mac. Do that either over your LAN or to an external drive formatted FAT32 or exFAT.

Migration assistant, If it Works, has unintended consequences.

There is nothing on any PC, other then personal data files (Images, Music and office files), that work on a Mac. No programs or settings will be carried over.