Rangers have had a bid accepted by Aston Villa for Carlos Cuellar, although boss Ally McCoist insists the deal is not finalised yet.[LNB] Cuellar enjoyed an impressive season at Ibrox in 2007/8 before making the move to England to join Villa.[LNB]The 29-year-old defender fell down the pecking order last season and Rangers have been holding talks over a possible transfer since identifying him as a top target earlier in the summer.[LNB]A significant breakthrough has now been made in those discussions with the two clubs agreeing a fee, and McCoist is hopeful of re-signing the Spanish defender.[LNB]"That would be great but there is still a bit of work to be done," he told Sky Sports News.[LNB]"A fee has been agreed between the clubs. In an ideal world, we would get the deal over the line and get Carlos up to rejoin us because he was a wonderful player for us and was thought of very highly.[LNB]"We have made no secret of the fact we want him back, so hopefully Carlos and one or two others will join us in the next week."[LNB]McCoist is keen to bring in a number of other reinforcements before Gers start their SPL title defence with a home game against Hearts next Saturday.[LNB]Bursaspor striker Kenny Miller is one player on their radar but McCoist does not know if he will come back to the Glasgow club for a third stint.[LNB]"That is a possibility. We haven't been in touch with Bursaspor at all but I wouldn't rule anybody out at this stage," said McCoist.[LNB]"We are certainly looking to bring three or four players into the squad for the start next Saturday."