32bit OS is only supported up to LR5.x.
LR6 runs on 64bit OS only. I suggest to upgrade your OS on the PC to a 64bit OS and use LR6.
You are allowed for 2 installations, i.e. Laptop and Desktop with one license.
Spanish is available in all versions as well as Flickr publishing.
- As you said you have one Computer that is 32 and other 64 bit(correct me if I am wrong).You can only use the Latest Lightroom 6 on your 64 bit Computer.
- You can use 1 License of Lightroom on both Computers at same time
- You can Publish your Pictures from Lightroom to Flickr Directly.See Adobe Photoshop Lightroom Help | Post photos online using publish services
For using Both Computers with single License.I would recommend you to go with Photography plan that offers Lightroom,Lightroom Mobile,Photoshop and Bridge and many other Creative Cloud features.See Creative Cloud pricing and membership plans | Adobe Creative Cloud
You can also install Previous Version of Lightroom i.e Lightroom 5 and it will work on your 32 bit version computer too.See How to Find and Install Previous Version of Adobe Apps in CC 2015 | Adobe Customer Care Team
Else,You can buy standalone version of Lightroom here Products .Choose Language and Quantity ,Then Add to cart.
You may try Lightroom for 30 days.Download from Download Photoshop Lightroom
Hope this helps