5 min job for good programmer for morrilla thunderbird

This is really easy job and ive read forums on how everybody has done it but i dont get code so would like some help to do this. all i want is to get the "i lepoard mail" add on working on my morrila thunderbird email version 6. currently it doesnt work on that version but if you read the posts on the thunderbird email client lots of people are making it work by changing something in the .rdf file ?? ive given instructions someone has left in the forum in the attachemnts below. also as i have thunderbird 6 installed i cant download this add on so you will need to download it somehow change the file and install it on my computer. this should take 5 min for someone who know what they are doing. look forward to working with you Andy