I'm familiar with that particular model because I have one at my house. It's running Yosemite (10.10.1) but I don't have CS software on it.
You might go for Mavericks (10.9.x), the previous OS X, because it's thoroughly updated and tested, and I'm pretty sure InDesign CS5.5 would be stable on it.
Don't try to migrate your software but install from you original media or download file, or download from here:
Thanks Steve. I appreciate your help. Unfortunately, I just talked to the Apple store and they don't carry memory for my laptop and they don't recommend updating the software without upgrading the memory to 8 GB (it's currently 4 GB). He said with my current configuration that he recommends keeping it on 10.5.8 for optimum performance.
That's disappointing. Seems like a perfect time to upgrade. Pretty strange that they couldn't just order the memory and deal with it at the same time. Guess they'd rather I buy a new computer. ;~)
Thanks again for your speedy response. Happy Holidays!
There are plenty of other sources for Mac memory online. Usually cheaper than Apple's.
No problems on my MacBook Pro (early 2008).
One more question… did you install more RAM to use the latest OS on your 2008 MacbookPro or did you keep it at the factory 4 GB?
4 Gb. I'm not using it for graphics anymore. It's being used by another member of my household.