Missing DXi plug-ins after installation

Hello:
I installed Sonar Home Studio 7XL on a new computer running Windows XP Pro Service Pack 3, Intel Core 2 Quad, 2.4 GHz, 3 GB RAM. I had previously copied all folders from the install on the old computer.
It has two partitions;C: operating system and some program files, and D: Sonar Home Studio 7XL install and Sonar folders copied from install on old computer plus some other program files. The DXi plug-ins Cakewalk TTS-1, Dimension LE, GroovePlayer and Roland GrooveSynth are listed, but no Dyad DXi and RXP. Any suggestions?
Thank you.
Solved. I installed Home Studio 4XL first this time. It had the missing DXi plug-ins.