Are you using send money from the paypal site? Only that I use Paypal one of my sites that holds classifieds adverts and "it" sends me the memo/comment field in every payment made through paypal.
The raw data I get is something like:
Passed variables :
--- POST VARS ---
txn_type = web_accept
payment_date = 21:32:25 Oct 24, 2004 PDT
last_name = <deleted>
item_name = Advertising Fee - indiv (#146)
payment_gross =
mc_currency = GBP
business = <deleted>
payment_type = instant
payer_status = verified
verify_sign = <deleted>
payer_email = <deleted>
tax = 0.00
txn_id = <deleted>
receiver_email = <deleted>
quantity = 1
first_name = <deleted>
payer_id = <deleted>
receiver_id = <deleted>
memo = As agreed via email, I will be listing 2 ads.
item_number = 146
payment_status = Completed
payment_fee =
mc_fee = 0.88
mc_gross = 19.99
custom = indiv
notify_version = 1.6
I also get a formatted version of the above sent separately.
So it is possible.....