Oh yes, you can put the tail back in! But if you're changing her clothes or posing her, be prepared for it to fall out constantly!
Well I'm glad about that! I would intend to play with her quite a bit.
I hit two stores today looking for her. I saw her at Zellers, but she unfortunately wasn't on markdown like I expected (They are closing out soon), so I checked Walmart to, but they had maybe 7 Monster High dolls in the whole store, so fail there. I'm going to have to start stalking toy fliers.