You sure can. Imgburn doesn't care what the files are. FLAC, text, mp3, pictures. It doesn't matter. They're all just data files.
The easiest way I can think of is to use Burrrn. It's a really, really good freeware burner made specifically for audio CDs. Let's go through the steps I'd take using the info you've given.
1. Build a DVD image containing your FLAC files using ImgBurn by adding the files you want to the queue. (Build Mode. Read the guides in the guides area of this forum).
2. Burn the image to DVD
You now have a DVD full of FLAC files, yes?
3. Pop the DVD into your drive and fire up Burrrn.
4. Add the FLAC files from your DVD to the Burrrn queue.
5. Pop in a blank CD and hit Go/Start.
Easy.
EDIT: Forgot to add the link for Burrrn.
http://www.burrrn.net/
Thanx for the quick advice, so should I just burn the flac files to dvd as iso or can I burn the folder containing the flac files as iso I want to be able to navigate to a particular artist or album quickly, and how do I view files with an iso.