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Hello,
i got reply from the Support  stating this Hardware is supported: 
However after several REstarts and De/In -stalling the 1.7.2 Driver, 
still i have no idea why the eHome : Manta TR1 Transceiver is not recognized:
Some Details : 
Mac Pro early 2008 on Mac OS X 10.6.2 ( before 10.6.1 with same result) 
Manta TR1 Transceiver  Here the USB Info from the System Profiler 
eHome Infrared Transceiver:
Produkt-ID:	0xe03a 
Hersteller-ID:	0x147a  (Formosa21 Inc.) 
Version:	 0.20 
Seriennummer:	C0124C42 
Geschwindigkeit:	Bis zu 12 MBit/s 
Hersteller:	Formosa21 
Standort-ID:	0xfd311000 
Verfügbare Stromstärke (mA):	100 
Erforderliche Stromstärke (mA):	100
Directly connected / on Hub no difference
to make sure no other extensions interfere :
kextstat | grep -v .*apple.* 
Index Refs Address    Size       Wired      Name (Version) <Linked Against> 
52    0 0x9161d000 0x2b000    0x2a000    at.obdev.nke.LittleSnitch (2.2.05) <7 5 4 3 1> 
96    0 0x91da3000 0x10000    0xf000     com.iospirit.driver.rbiokithelper (1.7.2) <70 34 31 5 4 3 1> 
128    0 0x929c4000 0x77000    0x76000    com.parallels.kext.prl_hypervisor (5.0 8898.441204) <14 13 7 5 4 3 1> 
129    0 0x91959000 0x3000     0x2000     com.parallels.kext.prl_hid_hook (5.0 8898.441204) <7 5 4 3 1> 
130    0 0x91cfb000 0x5000     0x4000     com.parallels.kext.prl_usb_connect (5.0 8898.441204) <34 7 5 4 3 1> 
131    0 0x91f47000 0x7000     0x6000     com.parallels.kext.prl_netbridge (5.0 8898.441204) <5 4 3 1> 
132    0 0x91d72000 0x4000     0x3000     com.parallels.kext.prl_vnic (5.0 8898.441204) <91 5 4 3 1>
which means only Little Snitch and Parallels installed Kernel Extension, all the rest are Apple own Extensions, 
also quite understandable these are the only Extensions/Applications i would keep in favor of RB, in case these are colliding, 
which i tend not to believe.
Thanks for your hints and time to read this lengthy Message.