Hi Dawn
I take it you mean the FindMyPast deserters record? I have the original and it is badly indexed by FindMyPast who as usual have cut corners, and made mistakes in their haste to get it online.
Firstly the date is 29 February 1828. It also says he deserted off furlough, and he was a collier, aged 23. If you PM me with an email address I will send it to you. The description is very detailed down to the colour of his eyebrows.
Captured deserters almost always lost the right to a pension, and were usually branded with a D for a second offence. As most surviving records come from the pension departments you will probably not find anything else online. The best way forward is to research the muster books in Kew – they are not online. The problem is that there are about seven musters covering 1828, so you may have to look at them all. These appear to cover one year only so the amount of detail should be good. Once you have his company you can check older musters to get his enlistment, and later ones (assuming he was recaptured) to get a full picture of his service.
Ken