It depends as to how fast the server where you have kept your images. Given the fact that they are Microsoft servers, I think they would be fast enough and would hardly have any noticeable down time. So, in that case, you could try moving your images to the Microsoft servers. However, there a few problems here:
1. You won't be able to work with relative paths anymore. With complex applications this can be quite a trouble. However, with a few lines of code, you can handle this. BUT, this also means that every line of code that links to or outputs a file resource needs to be changed. If you have doubts with this statement, ask and I shall give a detailed answer.
2. From the SEO point of view, your images will be tagged by search engines under a different domain and hence it isn't exactly a good idea. What you could do is a server-based redirecting to overcome this, but this method will definitely increase your loading times.
3. Simply put, in later stages it can get difficult to manage.
ah maybe not then. Its not the frihost bandwidth that scares me. Its the upload space.
Cant i spend my points on upload space. evreypoint = 1kb??
No, we have only one account setup. You only get 250MB space and 10GB bandwidth. We don't really sell any more space for points or anything else. But 250MB should really be much more than enough. I had several blogs and forums running, and I still managed not to use up more than 100MB.