Session Drummer 2-Help please (Solved)

Hello all,
 
Unfortunately for me, I had to wipe my hard drive and start afresh with everything.
 
Prior to doing this I saved Session Drummer 2 onto an external hd, and now I cannot get the programme back into MC4, depsite having the dll file and scanning the many different folders I moved it to for experimentation's sake.
 
Sure, I can pony up the £8.99 without causing great financial hardship (it would be easier!), but I'd rather solve the issue that I'm having if it all possible.
 
Any advice?
 
Thanks in advance,
 
Richard
 
PS: Solved as of January 29 2012.