Your questions are not very clear but I'm guessing:
1. You had a 1200 WC, that came with a mount / cradle for a Nav V fitted onto it, into which you slotted the GPS device. Life was, in a word: easy.
2. You have now bought an 1150 that (very inconveniently) does not have a Nav V cradle mounted onto to it.
3. You have your Nav V in your hands and are looking at your 1150.
4. You are wondering how to join your Nav V to your 1150?
Answer:
The 1150 comes from a glorious age, before BMW did everything for everyone.
If you don't have one, you can buy Nav V cradles, with and without the four buttons used to control the screen. You'll find them for sale on the internet or BMW / Garmin will sell one to you. If you are really stuck and desperate, I'll sell you a Nav V cradle: £125 without the buttons, £250 with the buttons. Postage and packing £25. See thread on moaning about rip-off postage charges.
If you have the cradle, there are several ways to mount (join) the cradle to an 1150. Post #2 suggests you use a Migsel mount. It's a good suggestion. If you don't like the Migsel mount, try looking at:
Ram mounts
A Google of 'Putting a GPS on a BMW 1150' or some similar brief combination of words
Going along to your local BMW dealership to ask them and / or looking at the bikes they might have in for a service, to see how their self-reliant owners did it
still got my Nav 5 from the GSA LC 
