The pattern I requested is "1thanxio", and it has to be all lower case, does the pool takes that into account?
Yes - when you requested the pattern, you should have read this line:
Your desired pattern (with leading 1 for MainNet, case-sensitive):
( emphasis mine )
As an aside - the correct link for your work request (mangled in your post): 1thanxio @ vanitypoolthanx for your response. regarding the link... it appears that the link gets mangled... I can't get it to appear right (unless you add the URL tag... like you did).