The fiche for the '07 shows a part called a "seal set" - the one you pointed out. Depending on what is damaged, you might be able to use seal parts from a later Gen II. (I think the nose piece is essentially the same.) Have a look at the fiche for the 2011, below. It uses one relatively expensive part and four cheaper parts to make up the complete seal (parts 44-48). If nothing is badly damaged then you can use the seal from your bike after thorough cleaning and degreasing. The 3M product (double sided-trim tape) is excellent if surfaces are properly cleaned.
Buy OEM Parts for Yamaha Motorcycle 2011 Cowling 1 Diagram
Edit: Let's not mess up this excellent "How To" thread with specific issues or problems that are not directly related to the initial post. It is appropriate to start a new thread with reference to this one. If nothing else, this recent flurry of activity popped it up to recent threads where newbies might see it. Perhaps it should be a "sticky" in the technical section.