Need Help with Geo-referencing of Raster with Bentley Descartes

hello everybody

i have been using bentley descartes for 2months now, and i still find some difficulty with geo-referencing with the software. I hav a raster with me dat i want to geo-reference. The raster has coordinate points (like 740500N, 533800E and so on). i have already vectorized it (thou i know it wld hav been better if i had geo-referenced the raster b4 vectorizing).......i nw wanna georeference the vector data with d coordinates on d raster.......

wld appreciate if someone can explain hw i shld go bout it in a simplified manner,  so i wld get it once and for all....

Thanks

Regards dipson(Assistant Product Manager)

Computer Designs System Services Nig Ltd (Bentley Partner in Nigeria)