I'm running Bryce 7.1.0.74 on windows vista. obj exports from Poser 6 come in standing up. as do obj or 3ds I create in Rhino. If I import the poser export into Rhino it winds up on it's side. I think Wings has a switch setting but I don't know of one in Bryce. If your Bryce is the same as mine this shouldn't be happening.

Find the actual install folder for Bryce. C:Program FilesDAZ3DBryce 7. Mouse over the Bryce.exe file or right click and you should be able to read the File Version. If the number is lower than 7.1.0.74 go to your DAZ account page, click on Itimized Order History, and reset the Bryce download. This will allow you to download the latest version and upgrade.